Check out my Bandit.
a cheap, off-road buggy, now it's an expenive on-road pavement pounder. The track I race at is all on-road, but the classes allow anything from an E-MAXX, to Stampede's run. The first official day of racing, there were 8 Pro-Stock Stampede races, it won 7. All I need to do to run it off road again, would be swap the front and rear tires with the Pro-Line spares I have, and tweak the setup a bit. An off-road car can be more easily converted to on-road, than an on-road car to an off-road one. If that made sense.