Personally, I did 2-3 on hard difficulty a lot. The boss is very easy to beat cause you can glitch him on the track.
CP isn't really an issue though cause of the insane amount of boosting you need to do to platinum the game.
All difficulty trophies will get you 2 with 3rd at a high level.
Doing online VS boosting and getting 100 ranked wins you'll get one faction maxed for sure & the max the remaining on the one you didnt finish in career. thats 4/5.
Then you need to play 500 total online games.
that'll knock out the 5th.
THL1 1st place / THL2 2nd place. No longer participating in THLs
2013 GOAL = 100 Platinums in 2013
27/100 ... 116/189
BOOST or Co-Op? ADD/MESSAGE if youre interested in these:
XBox, go home.