Great Customization, and GREAT Game!
Midnight Club LA offers a fairly wide variety of cars that come along with customization parts such as "performance parts" ( you may even choose the brand!), Body parts (Front bumber, side skirts, steering wheel, etc), Paint jobs (Vynil jobs and normal paint jobs), hydrolics and airbags (Must unlock via RockStar Social Club) and even special abilities (Such as AGRO where you can just ram your opponents out of your way!)!
Also it is not that hard of a game and not that easy... Great online too!
...No doubt one of my favourite games!