I bought a beautifully built red E30 with an S50 swap, and use it for DE's. I instruct for Badger Bimmers, PCA and Audi, and occasionally with Hooked on Driving. It has E36 M3 or E30 M3 components all around, including suspension, brakes (Wilwood kit that will take 15" or 17" wheels), partial cage, lowered and lightened chassis. Car is street legal with Hobby plates. Considering replacing the stock 12 gallon tank with a 'well' fuel cell. Anyone knowledgeable with constructing the box for the cell to SCCA standards please contact me.