I'm not saying there's anything wrong with pissing away your money on your car, hell I've been doing it for 3 and a half years now. I mean, it's better than putting it up your nose or somethin stupid like that. My point is that, why have something so fast and not be able to use it? Or say it will do 180 in the 1/4, you're gonna have to do some MAJOR modifying to that car to stay safe. Adding a spoiler and ground effects are the least of your worries.
I mean, my friend that I was speaking about who hit the wall at 120, he builds full-tube chassis and drag cars for a living. Yes, that fastest of the fast. And currently in his garage is a 65 Fastback that sits incredibly low to the ground and how a motor that will definitely meet or exceed 180 MPH(a blown and injected 404w). This car sits so low that the top of the roof sits at 50 inches from the ground(which is about at your chest on a 6'0" tall guy). Yeah, and the guy he's making it for specified that he also wanted it street legal. Yeah, it's one killer car. But you know what, it's also got a full-tube chromoly chassis with funny car roll cage, and all of that is NHRA certified with the tag to prove it. My point is, you can go as fast as you want, but the safety better be there. I'd rather have a car that topped out at 80 MPH but I dumped a crapload into it for a full cage and all the correct safety equipment than to have a car that tops out at 180 MPH and has maybe a roll cage and seatbelts. The safety has got to be there man, I can't stress that enough. It seems like you're really overlooking it. Because if you weren't, you'd be more worried than you are acting right now, because it will NOT be cheap.