A motor vehicle having at least three wheels, an internal combustion motor
and a wheel drive mechanism, wherein the motor has an exhaust system
connected thereto, includes a) an exhaust system having a first exhaust
pipe and a second exhaust pipe with the first exhaust pipe being in a
fixed position relative to the internal combustion motor, and the second
exhaust being rotatably connected to the first exhaust pipe, and b) an
exhaust pipe drive mechanism connected to the second exhaust pipe for
rotation of the second exhaust pipe. The pipe drive mechanism may operate
off some power source of the vehicle, operate independently of the
vehicle power sources, may operate from exiting exhaust gases, ambient
wind form motion of the vehicle, or a combination of the foregoing.