I've owned both the tc3 and xxx-s in the past. They're both excellent cars. For asphalt, I would choose the xxx-s. Reason being the enclosed drivetrain and the steering rack. The tc-3 steering rack gets hung up enough indoors on carpet, outdoors it's a nightmare. The exposed drivetrain on the tc3 can also be problematic outdoors especially on a dusty/sandy type parking lot surface...