I own both of these cars and I'll tell you the Conquest is more of a show out kind of car. I love my Stealth but the Conquest is alot more fun. The Conquest is modded more than the Stealth. I'm running a 20G turbo and a marnel head. 3" exhaust and hard lines. The heating problem they speak of is a quick fix, just hot wire the fans { all 3 of them} to run when the engine is fired up. Also have the radiator rodded out and pressure checked. The site to go to, to find out what mods you need to make these little rockets run fast and reliable is " starquest club.com". The Stealth is just really quick and fast. But with allwheel drive you just can't show your tail as much. Either car is a good choice. For the Stealth answers to speed go to "3si.com". I hope this helps.Randy.