Yea, my S15 is a hybrid or so to speak, 'crazy conversions'. I try to keep my hybrids realistic using same manufacture motors and parts. This S15 is just one of them. A Trueno S.S. with a Supra motor is another...that seems a little too much...but that's what that one has in my memo card.
I used game shark for the Credits. I can make the credits but I'm more into the cars than trying to get 100% out of the game.