Thunder, don't get a lambo kit car. You won't be happy with it. If you want a really nice kit for cheap, look at the K1 Attack. I think you can get one built for about 30k. The kit is 15k + donor parts. and it's a true ground-up sports car. (and it looks a lot like a lambo)

OR, you could get a used Corvette C5 for under 20k. That's a great performance deal with a car that is easily serviced.