jdoc

$2,500US can barely get good wheels and tires... besides the cheap ones.
Your original wheels have better quality than wheels you can spend at $2,500US.

Depending on what kind of cars (sports, sedan?)
Sports - suspension, strut bars, exhaust
Sedan - window tint, clearbra films, GPS/TV

Or just save up the money for next car...  or get it wash every two weeks.. lol.