Not really, kaje's scooter only has two wheels without faking:
function scooterVehicle::onAdd(%this,%obj)
{
//mount the nothing tire and ski spring
%obj.setWheelTire(0, scootertire);
%obj.setWheelTire(3, scootertire);
%obj.setWheelSpring(0, scooterSpring);
%obj.setWheelSpring(3, scooterSpring);
%obj.setWheelSteering(0,1);
%obj.setWheelPowered(0,true);
  %obj.setWheelPowered(1,true);
}