Marko did street drive the Supra, that's how he got to the local tracks, but for long trips down to Vegas for competition he would trailer it. Either way he would have to drive it to get to the street drags and make some money, no one would want to race a Supra that was brought in on a trailer.
If for somereason the Viper actually gained 600lbs. it would have to be do to all the engine work (strong lengthy piping, huge turbos, and hue intercoolers) but still that seems a bit much even when the car must have carbon fiber front bumper and hood since SVS makes that. Or the driver weighs 400lbs.
