Racing Game

I'm looking for a good racing game.  Not something super simulator.  I want a game that allows you to customize your car a decent amount and be more arcade than sim.  also multiplier would be nice but not fundamental.  any help ? 

I am guessing a Need For Speed game. If you have a PS3, then I really enjoyed Midnight Club LA.

i was hoping for something on pc but i guess ill just have to settle for forza 

On PC...  I enjoyed NFS: Rivals for an arcade racing game. Customizing might not be to the level you want though. I really enjoyed NFS Underground back in it's time. A lot of customization there... but I assume you're wanting something newer. :)