To get this trophy, you need to get gold in everything mentioned above. Underneath follows a breakdown on what events you need to get gold in. For specific tips, see the trophies covering racing series, license tests and special events.

Racing Series:
- Beginner series
- Amateur series
- Professional series
- Expert series
- Professional series
- Extreme series
- Endurance series

You only need gold in every event (including championships) in A-Spec or B-Spec. Thanks to pkdwr (gtplanet.net) and PaulC2K for confirming. Doing golds in B-Spec means you won't have to drive any of the 24 Hour races yourself. You also need gold in the following:

Liecense Tests:
- B License
- A LIcense
- International C License
- International B LIcense
- International A License
- S License

Special Events
- Gran Turismo Karting Experience
- Jeff Gordon NASCAR School
- Top Gear Test Track
- AMG Driving Academy
- Gran Turismo Rally
- Grand Tour
- Sébastien Loeb Rally Challenge
- Red Bull X1 Challenge

Getting to level 40 in A-Spec will require a lot of grinding. Until you get to LV 21, you should get the most you can out of Special Events and Licenses. You can only get experience for them once for each medal value, but at least Special Events give you a lot of it. From LV 21 you can start following the grinding guide in this thread. At LV 25 you should do Endurance Races to level up faster.

Getting to level 40 in B-Spec mode will require a lot of grinding. When you reach level 25, you should do the Endurance races over and over again. Look at this thread on how much experience you'll get from each of the Endurance Races.

When you win the Gran Turismo World Championship (LV 14) in the Professional Series, this ending movie will unlock. You have to get back to the GT Life screen where one of the messages will say that you have unlocked this movie. Soon after the movie starts, this trophy will pop. Thanks to Splodge_277 for the tip.

The Extreme series unlocks at Level 20. You need to get at least a bronze in every event (including championships) in either A-Spec or B-Spec mode to unlock this trophy. Go back to the GT Life screen to unlock the trophy. Underneath is a list of all the races and the level requirement. Please look in the Race Series Guide for tips about what cars to use.

Schwarzwald League B - LV 20
Like The Wind LV 21
NASCAR Series LV 21
European Championship LV 22
German Touring Car Championship LV 22
Super GT LV 22
American Championship LV 23
Formula Gran Turismo World Championship LV 23*
Dream Car Championship LV 24

*The car required unlocks at LV 24 and has to be bought in the Used Car Dealership. Keep looking after you reach level 24 in A-Spec or B-Spec. It costs from 5 mill and down depending on mileage.

The Expert series unlocks at Level 15. You need to get at least a bronze in every event (including championships) in either A-Spec or B-Spec mode to unlock this trophy. Go back to the GT Life screen to unlock the trophy. Underneath is a list of all the races and the level requirement. Please look in the Race Series Guide for tips about what cars to use.

Tuned Car Championship LV 15
Schwarzwald League A LV 15
MR Sports Cup LV 16
Historic Racing Car Cup LV 16
Turbo Challenge LV 17
Gallardo Trophy LV 17
Japanese Championship LV 18
Gran Turismo All Stars LV 19
Polyphony Digital Cup LV 19

The Professional series unlocks at Level 10. You need to get at least a bronze in every event (including championships) in either A-Spec or B-Spec mode to unlock this trophy. Go back to the GT Life screen to unlock the trophy. Underneath is a list of all the races and the level requirement. Please look in the Race Series Guide for tips about what cars to use.

Mini Challenge: LV 10
Muscle Car Championship: LV 11
Supercar Festival: LV 11
Lupo Cup: LV 12
Japanese 80's Festival: LV 12
Lamborghini Exclusive: LV 13
British Lightweights: LV 13
La Festa Cavallino: LV 14
Gran Turismo World Championship: LV 14

The Amateur series unlocks at Level 5. You need to get at least a bronze in every event (including championships) in either A-Spec or B-Spec mode to unlock this trophy. Go back to the GT Life screen to unlock the trophy. Underneath is a list of all the races and the level requirement. Please look in the Race Series Guide for tips about what cars to use.

Clubman Cup: LV 5
European hot Hatch Championship: LV 5
NR-A Roadster Cup: LV 6
Pick-Up Truck Challenge: LV 6
Japanese 90s Challenge: LV 7
Tous France Championnat: LV 7
Festival Italia: LV 8
Classic Muscle Car Championship: LV 8
Supercar Nostalgia Cup: LV 9

This is the first and easiest series of events and is unlocked from the start. You need to get at least a bronze in every event (including championships) in either A-Spec or B-Spec mode to unlock this trophy. Go back to the GT Life screen to unlock the trophy. Underneath is a list of all the races and the level requirement. Please look in the Race Series Guide for tips about what cars to use.

Sunday Cup: LV 0
FF Challenge: LV 0
World Compact Car Race: LV 1
Lightweight K Cup: LV 1
Japanese Classics: LV 2
Yaris Race: LV 2
European Classic Car Championship: LV 3
World Classic Car Series: LV 3
FR Challenge: LV 4

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

Apply what you have learned on:
1: Monza
2: Trial Mountain
3: Nurburgring GP
4: Tokyo Route 246
5: Leguna Seca
6: Madrid
7: Top Gear Test Track
8: Suzuka
9: Le Sarthe
10: SSR5

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

1. Master the Indianapolis section of Le Sarthe
2. Braking on the Hunaudieres Mulsanne straight
3. The corkscrew on Leguna Seca
4. Consecutive corner braking on snow
5. Drive around the Puerta de Alcala Madrid
6. Visualize a path through the blind turn
7. Difficult fast consecutive turns at Toscana
8. Drive the spiral bridge on the Cape Ring
9. Drive offensively, defensively on the Grand Valley Speedway
10. Grand Valley Speedway 2-Lap Battle

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

1. Wet track stopping challenge
2. Drive the first bend of Madrid
3. Slalom between cones
4. Drive on snow
5. Fast blind corners on the track of Tokyo
6. Rounding the bend half of Tsukuba
7. Fast undulating consecutive turns on gravel
8. Drive the Carrousel on the Nurburgring
9. Drive offensively, defensively on the final section of Tokyo
10. Deep Forest Raceway 2-Lap Battle

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

1. 1000M Stopping Challenge
2. Brake in and out of a corner after a straight line
3. Crossing a double hairpin
4. Anticipation braking downhill on gravel
5. Turn at high speed on the track of Rome
6. Turn into a blind corner
7. Consecutive turns of varying degrees on gravel
8. Drive the famous Lesmo corners at Monza
9. Late breaking for double apex
10. Rome 2-Lap Battle

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

1. 400M Stopping Challenge
2. Approaching a Blind Corner
3. Cone Slalom
4. Tackling the Monza Circuit Chicane
5. Tackling Continuous Urban Right-Angled Corners
6. Mastering a Set of Undulating Corners
7. Driving a Mountainous Dirt Track
8. Tackling the High Speed “Schumacher S”
9. Using Braking to Overtake on the Inside of a Corner
10. High Speed Ring 1-Lap Battle

Specific tips:
4. Brake later than what the driving line says. On the way in and out of the chicane, cut the corner as close to the white sign as possible.
6. Drive tighter than the racing line.

To unlock this trophy, you need to get a bronze in all 10 tests. The trophy will pop when you go back to the GT Life screen. Keep in mind that for the "Gold Standard" trophy, gold is needed in all these events. Look at this video playlist for some great videos. There are some tips in the description part of the video page that are valuable. Special thanks to Gaming Stylez on YouTube for the videos. For most of the tests, I turned off Traction Control.

1. 200M Stopping Challenge
2. Steering?
3. Out-In-Out – The Most Basic Cornering Line
4. Braking into a Corner
5. Basic Cornering Theory – Slow In, Fast Out [GLITCH]*
6. Exiting From a Looping Corner?
7. High Speed Driving Lines and Throttle Control?
8. Finding a Line Through an S Bend?
9. Overtaking Using Slipstreams?
10. Indianapolis Motor Speedway 1-Lap Battle

* As of patch 1.03, this is no longer possible. If you have installed the patch, you have to go to 'Game Data Utility', then delete the game data for Gran Turismo 5 and start the game again without installing the patch. DO NOT delete your save game.

These Special Events unlock at Level 16. It has one entry event consisting of 3 Time Trial Events. If you have trouble with any of them, you can play the example replay. I personally found them quite easy to get gold in. You have to turn off Traction Control and also, make sure Active Stability Management (ASM) is off as well. For the third event, the one on snow, the driving line won't help you at all. It tells you to brake in places where you can go flat out. So you have to find your own pace here.

1. Toscana (Dirt)
2. Eiger Nordwand K Trail (Dirt and a little Tarmac)
3. Chamonix - Main (Snow)

These Special Events unlock at Level 13. It has one main event featuring 5 smaller events.

1. Time Attack on Eiger Northwand
- With a controller: TCS 7, Active steering Mild. Thanks to 3tse for the tip.
2. 2 Lap Battle on Monza
- First corner is key. Try to get in 3rd place allready by the first chicane.
3. Tuscan Night Race
- Driving Options: Turn on Active Stability Management (ASM)
4. Tuscan Time Trial
- Driving Options: Turn off Active Stability Management (ASM)
5. Rome City Course Road Race
- Driving Options: Turn on Active Stability Management (ASM)
- 3rd place is easily achievable on the first straight.

To unlock this trophy, you only need to get bronze in the events. The trophy will unlock when you get back to the GT Life menu.

These Special Events unlock at Level 10 and it has 3 main events that unlocks at Level 6, 15 and 20.

Keep in mind that you should use the correct set of tires for tarmac (regular tires), dirt and snow. Tires can be bought in the Tuning Shop. Also make sure that Active Stability Management (ASM) is turned off on dirt and snow.

Beginner (LV 6): 245 BHP or less.
Volvo C30 R-Design '09 - Cr. 42,000 at the Dealership.
Tuning: None, but if you struggle there is room for tuning.

Intermediate (LV 15): 345 BHP or less.
Mitsubishi Lancer Evolution X GSR P.P. '07 - Cr. 42,400 at the Dealership
Tuning:
Sports ECU - Cr. 1,000
Racing Air Filter - Cr. 450
Catalytic Converter: Sports - Cr. 500
Chassis Weight Reduction Stage 1 and 2 - Cr. 15,000
Sports Tyres - Soft - Cr. 8,000
Fully Customizable Transmission - Cr. 20,000 - Set Max Speed to 230

If you don't get gold in all the events, come back with a WRC Rally Car. I used a Citroen C4 WRC '08 that I won for completing at least bronze in these events, to win the dirt rally. You may not win a WRC car by doing this. If not, get all gold in the Sebastien Loeb Challenge and you'll get the car for sure.

Advanced (LV 20): WRC Cars

Recommended car:
Citroën C4 WRC '08
You can either:
- Buy it from the Citroën Dealership for Cr. 850,000
- Get gold in all Sebastien Loeb challenges (not that hard, see "Sebastien Loeb Rally Challenge")
- You may be able to win a WRC car if you get a bronze in all the intermediate events.

Tuning:
Engine Stage 3
Titanium Racing Exhaust
High RPM Range Turbo Kit
Medium Racing Tyres

As usual, there is one event for dirt, snow and tarmac. This time there will be 8 special stages for each. With a tuned up WRC car it shouldn't prove very difficult though. As usual, I recommend turning off Traction Control for the dirt and snow races. I also had it off for the tarmac event, but depending on your skills, you may want to have some traction control on, but don't go above 5.

AMG Driving Academy unlocks at level 6 and has 4 main events requiring a level of 6, 12, 18 and 24. The bronze times are pretty easy. For gold however you need to practice. Focus on each event for itself as you will learn each section first and then try and do the full lap after that.

This event unlocks at Level 4 and contains 3 main events requiring a level of 4, 8 and 19 respectively. The Beginner and Advanced events have you driving very slow cars. Slipstreaming is believe it or not, very important and you have to only break when absolutely necessary.

This event unlocks at Level 2 and has 3 main events that unlocks at Level 2, 9 and 21 respectively. It starts with Jeff Gordon giving you some information and tips about NASCAR. In the Intermediate events, turn off Traction Control and Active Stability Management. For the first and third Intermediate, set it to manual gearing. Change from third to fourth gear right after you start turning left. For the Advanced events, turn off Traction Control, ASM and ABS.

The Karting event has three main categories that requires you to be Level 1, 7 and 17 respectively. The key in these events is to handle the Go Kart properly. This means gentle turning and braking. Otherwise you will lose control of it. If you're using a pad, make sure you use / for braking and acceleration.

Believe it or not, slipstreaming means a lot here so position yourself behind other karts to build up speed and race past them. I only found the very last race of the last event a little bit hard. The start is important. If you lose contact with the karts in front, you most likely have to restart. Shouldn't be to hard though.

As soon as you have gotten your first car, you can take part in the Sunday Cup in the Beginner Series. Make sure you go into A-Spec mode from the GT Life menu. Just win a race and this trophy will unlock.

Same as with A-Spec, starting with Sunday Cup is your best bet. This time you have to chose B-Spec, which means you control an AI Driver in stead of driving your self. You might not win the first few races. I won in my third race and used "Decrease Pace" a lot at the start to keep him cool.

Go to GT Mode > Photo Travel. Select any location and any car and any position. Any settings will work, now save your master piece, and exit back to the Photo Travel Location screen. In the bottom right hand corner you'll spot a camera icon. This is your Photo Album. Inside you'll find your photo(s), simply press menu and Share with Friends. The trophy will pop up in a second.

On the main menu screen select Course Maker. Now select any Theme, any number of corners, sections etc. Once your done save and name your track. Exit the Course Maker and go to GT Mode > Track List (it's a small icon on the left hand side). Select your track and click on Share with Friends. It will get uploaded and the trophy will appear.

As opposed to what the trophy description says, this trophy doesn't seem to be tied to a car. It's all about spending money on tuning parts in general. You buy tuning parts by going to the Tuning Shop. I suggest selecting the car you want to upgrade first, so that you can install the upgrades when you buy them.

There is no way you won't get this trophy on your way through the game but if you for some reason hasn't by the time you get the "Multi-Millionaire" trophy or just simply want to get this trophy, do the following: Go to the Tuning Shop, doesn't matter what car is selected, and keep buying Soft Racing Tyres until it unlocks. If you want to get your tuning money back, just quit the game right after the trophy unlocks.

In the GT Life menu, go to GT Auto and chose Racing Modifications (far right choice). This can be an expensive affair so you might want to wait until money is no issue anymore. If you want the trophy without paying for the Race Modification, there is a way to do so. After you have added Racing Modification and you see the car drive out of the garage, wait for the trophy to pop and then quit the game. Thanks to ghrules69 for this tip.

Check out jasynergy's Racing Modifications Guide for a full list of Race Mod-able cars as well as prices and other information. I will recommend the Chevrolet Corvette ZR1 which can be used to grind money from LV 21 A-Spec.

Go to Arcade Mode -> Drift Trial -> Snow and Dirt -> Chamonix - Main.

Then chose the Ford Focus RS WRC 07 '08 and make sure it says Sector Mode in the Drift Type option. This track has 5 sectors. The first sector is the key. Your goal should be able to get 6,000 points or more in this sector. Watch your speed and angle your car about 45º. Underneath is some point values you should aim for:

Sector 1: 6,000++
Sector 2: 1,500
Sector 3: 500
Sector 4: 500
Sector 5: 1,500

If you do it right, you can get a lot more than 10,000, but you probably need a few tries.

Thanks to Mastodon for the tip about this trophy.

Whether you are in Practice Mode or Arcade Mode Time Trial, this trophy can be done by clicking on the Auto Logger icon in the menu you get to after exiting. You may have to drive 2 laps to make sure you get to use this option. If you don't drive far enough it will be grayed out.

Firstly make sure you have some music saved onto your PS3. When in GT Mode go to Music Library > Race BGM tab. Just below these tabs you'll see a gear icon, click on that (BGM Settings (Race)). Firstly select 'Open PS3 system Music folder' and select a song/folder and then select "User BGM (Race)". Click OK and the trophy will pop up. Thanks to j8mie for the tip.

This trophy will come naturally. To keep an eye on how many KM's you've driven, go to the Profile menu in GT Mode. If Miles is your thing, then you need to get to 7,903 miles. Both A-Spec and B-Spec races counts.

To get this trophy, you need to have 1,000 cars in your garage. Thankfully, they don't need to be unique. The cheapest car in the game is the PDI Racing Kart 100. They cost 5,000 each and can be found at the Gran Turismo dealership. Be sure to get the "Multi-Millionaire" and "Colorful" trophies before going for this. You can go to the Profile menu in GT Mode to see how many cars you have in your garage.

Thanks to TheMedusaCascade for confirming that multiple karts works.

To get this trophy you need to have 10,000,000 Credits in GT Mode. It's is not cumulative so at one point, you need to have Cr. 10 million available to spend. Keep in mind that the Credits differ in certain versions of the game. If you have the Japanese version, the equivalent to Cr. 10 mill would be Cr. 1 billion. You can look at the Race Series Guide for ways to get money as fast as possible.

Go to GT Mode -> A Spec -> Beginner Series -> World Classic Car Series (LV 3)

Win all 3 races and you'll be rewarded with a Subaru 360 '58. When you go to Car Delivery and accept this gift, the trophy will pop. Thanks to Blessorship for the tip.

This will come naturally as you win cars in races and other events. If you for some reason want to focus on this trophy, look in the used car dealership.

To buy used cars, go to Used Car Dealership from the GT Life menu. Each time you go here, there will be different cars. If you don't find a car with 300,000km or more in travel distance, come back another day and by that I mean in-game time. After you do an event, either in a racing series, license test or special event, there will be a new day. Keep coming back until you find a car that matches the requirement.

You have to buy a car for Cr. 100,000 or more to get this trophy. If you just want to get this trophy without paying for the car, you can exit the game at the screen where the car drives up to you.

You have to buy a car for Cr. 1,000,000 or more to get this trophy. I suggest waiting to get this trophy until after you get the "Multi-Millionaire" trophy or at least when you need a car for this price. If you just want to get this trophy without paying for the car, you can exit the game at the screen where the car drives up to you.

When you reach A-Spec Level 2, you unlock the NASCAR School. You can then go to Special Events from the GT Life menu and do the first NASCAR event and you should easily get a speed of 300 or more.

There are a few cars that can do this trophy. The easiest and fastest way to get it is to first win the Gran Turismo World Championship A-Spec Race (LV 14) in the Professional Series. The reward car for this championship is the Bugatti Veyron 16,4 '09. Make sure you go to Car Delivery and accept this gift.

Go to the tuning shop and buy the following:
- Fully Customizable Transmission - Cr. 20,000. Set Max Speed to 480KM/H (about 298MPH).
- Sports ECU - Cr. 1,000
- Chassis Weight Reduction Stage 1 & 2 - Cr. 15,000
- Sports Intake Manifold - Cr. 2,500
- Racing Air Filter - Cr. 450

Then go to Practice -> World Tracks -> Circuit de la Sarthe 2009 (No Chicane) -> A-Spec Free Run.

I don't find the Bugatti Veyron useful for any other races so if don't want to spend money on the parts for it, you could wait until you unlock the Red Bull Challenge at LV 30 in either A- or B-Spec. Then you can just enter one of the 3 Red Bull Special Events and you will easily get 400KM/H.

This can be a difficult trophy to get if you try for it. Your best bet would be to do it in the first NASCAR Special Event (unlocks at Level 2). Any NASCAR event or race is a good chance for this trophy, but the event mentioned here is very short and fast to retry if you don't get it at first.

- Go to Arcade mode, split screen.
- Controller 1 chose Subaru and Controller 2 chose Lancer
- If you only have 1 controller, hold down and change it to controller 2 and chose the car
- Go to race, and finish the race with only one car.
- If you only have 1 controller, change it back to controller 1
- The trophy will unlock when you exit the race

Thanks to Jack_GTR and Mastodon for this tip.

There are two sides to this trophy. Getting one of the cars, and win the race. First you have to get one of them. Each of them cost Cr. 20,000,000 in the Dealership. The Jaguar XJ13 Race Car can be won in the Indy 500 (LV 28) Endurance Race so I suggest you wait until you get it for free. Here is a breakdown:

Ford Mark IV Race Car - LV 20 - 499BHP - 1,000 KG
Ferrari 330 P4 Race Car - LV 21 - 449BHP - 792 KG
Jaguar XJ13 Race Car - LV 19 - 501BHP - 998 KG [Prize Car at Indy - 500 Endurance Race - A-Spec]

When you have acquired one of them, you can buy the few available tuning parts and then go to Expert Series - Historic Racing Car Cup (LV 16) and win the race. I won it by using the Mark IV Race Car, which I found the easiest. If you can't win it with the Jaguar XJ13, you can get the Mark IV or the 330 P4 by doing the birthday trick. Make an alternate account with todays birthday date and birth year being 1967. Then log into the alternate account and start GT Mode. If you don't get one of the mentioned cars as a gift, exit out and delete the save file (on the alternate account). When you get it, send it to your main account as a gift.

Get bronze in all Intermediate events in AMG Driving Academy (LV 12) to unlock Nurburgring Nordschleife for use in Arcade Mode.

Then you have to go to Arcade Mode -> Time Trial -> Nurburgring Nordschleife -> Nissan GT-R. Make sure you use the Arcade version of the car and not your GT Mode version.

Make sure the tires are of the Sports Hard grade. Underneath is a video of TheFlyingToaster getting this trophy using a wheel.

The easiest way to get this trophy is to wait until you are A-Spec Level 1. Then you will get a Go Kart. Then follow these steps.

1. Set PDI RACING KART 100 as one of your favorites
2. Go to Arcade Mode Time Trial and choose Superspeedway - Indy as the track
3. Choose PDI RACING KART 100 as your vehicle
4. Race 4 laps and stick to racing line (be very gentle with the turns)

The first lap is used to set a Best Time and in the following 3 laps, you have to finish within 0.200 of the Best Time. By following this method, my differences varied between 0.001 to 0.035, well within the requirements. Thanks to rankftw for the tip. If you're patient, you are likely to get it without trying when you get to the Indy 500 Endurance Race (unlocks at LV 28).

Keep using the same B-Spec driver, He will eventually get to Class 30.

Each B-Spec driver reaches the peak of their career at 500 B-Spec days. At this point you will get the trophy and their skills will start to deteriorate a lot faster. To keep an eye on this, you can go to the driver line-up screen (Helmet icon on the GT Life screen). What you want to look at is his career (PAL)/ experience (NTSC) bar. When that reaches 100%, this trophy will unlock.

As mentioned, a B-Spec driver reaches his full potential when he has had a 500 day long career. The only way to advance days in B-Spec is to race B-Spec races in career mode. To get this trophy as easy as possible, you should focus on this trophy with the first driver you create. Let him take part in every race so that he gets better. While skill probably has nothing to do with this trophy, it doesn't hurt that your first driver takes part in every race so that he becomes as good as he can be. You also need to get a driver to Class 30 for the "A Star is Born", so I suggest going for both trophies with the same driver.

If you don't get this trophy by the time you reach LV 40 in B-Spec mode, I suggest doing Sunday Cup over and over in B-Spec mode. This is the fastest way to advance days in B-Spec mode. Thanks to Paul2CK for his thorough research on this matter.

You collect colors when you buy new cars or get cars from winning races. You also get at least 5 colors for each day you play the game (as long as you are signed in). Playing for consecutive days will increase this number by one, all the way to 10 which is the max. You can also unlock a few paint items in certain events. Unlock 256 unique colors to get this trophy. I bought the cheapest cars in the Used Car Dealership to speed up this process.

To see your color items and the amount, go to the GT Life screen and click on the Items icon (looks like a suitcase). Chose Paint Item and you'll see the amount in the top right corner. Keep in mind that you may not get this trophy when it says 256. Keep collecting different colors and this trophy will eventually unlock.

This trophy might be glitched as a lot of people can get well into the 300's without unlocking this trophy, and seems to be two things that causes this. Sometimes if you get different colors that have the same name, they are listed as unique colors and counted by the paint list as unique but it doesn't count towards this trophy for some reason. The other one is that you may not get the color to count if you don't chose to use the cars you buy or win. To be on the safe side, always answer yes to that question when you get a new car.

You're going to save yourself a lot of grief if you go for this trophy before you do anything else in GT Mode. If you haven't done anything, follow these two steps to get this trophy:

Dealerships -> Mazda -> Eunos Roadster J-Limited (NA) '91 - 19,000
Tuning Shop -> Engine -> Sports ECU - 1,000

This will use up all your credits. Go back to the GT Life main menu for the trophy to unlock. Thanks to Scary Paladin for the tip about the car.

If you don't get this trophy at first, there are a few alternate methods:

Alternate Method 1:
You have to buy used cars and winning races to make sure your Credits get back to a round number. Generally, buy used cars until your credits can be divided by 10. Win races until your credits can be divided by 50 or 100. If by 50, wash your car. When you can divide it by 100, buy tuning parts and or new cars from the dealership that has round numbers until you hit 0.

Alternate Method 2:
The money cap in this game is on Cr. 20 Million, and that is also the prize of the most expensive cars in the game. Reach the cap, and then either buy the Ford Mark IV or the Ferrari P4. If you don't want to get these cars, either by a combination of cars or you could use alternate method 3.

Alternate Method 3:
Take a back-up of your save to a USB Memory device or a USB External HDD. Then Delete the save on your PS3 and buy 4 PDI Racing Karts from the Gran Turismo dealership. When you have unlocked the trophy, restore your main save by going to the Memory Card and copy it back on to the PS3. If you're far into the game, be careful not to mess up this process.