Tug
The Tug is an all purpose baggage transportation vehicle. It is first encountered in Grand Theft Auto: San Andreas, and later in Grand Theft Auto IV. It is capable of mounting baggage trailers and airplane boarding steps, and has a high overall speed but low acceleration. It's function in the game is thought to be the same as the Baggage.
Using two double barrel shotguns in Grand Theft Auto: San Andreas, the Tug could be sent flying 4-5 meters (9-12 ft), sometimes making full 360 degree revolutions in the air.