Yes, there's a virtual crapload of inexpensive stock car stuff out there, and my car is a 4 banger,
specifically..
http://www.daymotorsports.com/product/1325/AERO_31-SERIES_SPUN_FORMED_BLACK_WHEELS

I should've added that the car is a 93 notch, I've already scrounged plastic seats, glass hood, a set of doors to cut up and misc suspension stuff, fuel pump, etc. I just haven't had time to put it all together yet. The plan is to run it in one of the riceburner classes and wreak as much havoc as possible. The history of it is that a few years ago I finished 3rd in my GT in a stock class racing against independent suspension S2000s and stuff, so I thought a little payback might be in order.