FORCED INDUCTION!!!!!!!!
lol.....
k, i'd invest about 10g's total (engine/tranny build + turbo/engine mgmt., suspension, body). my 2001 is paid off. i figure i'd rather take those 10k and make my car unique and pay off the debt easy, rather than get the "cool" new car, like a Z or a g35(which i love, actually), and fall $37,000 in debt.
Engine build + turbo setup, i'd definitely aim for a 300+ hp car. runnin close to 20 psi.