www.dragraceronline.net. Get the V3 version. Pretty fun shit. If you get the online version you can race people, well, that are online. I got a McLaren F-1 kickin' out around 1800hp and runs low 5's high 4's. See if anyone can beat that! Gear tuning and boost control is the secret to the game. Pretty unrealistic, but still quite fun.

 

Haven't looked yet, but I think this is the same game that I played on NewGrounds a long time ago, only a newer version. Cool game, but I hate the controls. I love any game where you can modify your car, regardless of what the mods are.. I think interactive games are the coolest!