Wii Car Games Any Good PSP, Or Wii Racing Games With A Car Modification Feature?

Any good PSP, or Wii racing games with a car modification feature? - wii car games

I play Need For Speed Underground Rivals for the PSP, and I like the role of the garage. In order to change their cars, and earn points to buy new cars and extensions. Are there any other racing games like this? .. Do any of the other NFS games do? I like helping people.