[Chadworkz]

If it was all white plastic, it was the Traxxas Rad2 Kit (needs assembling and electronics).

If it's all black plastic, it's the Traxxas Rad2 Factory Assembled RTR (needs nothing but a 7.2v stick-pack).

If it has a gold aluminum tub, shock towers, and rear motor-plate with white plastic wheels, it's the original Traxxas Radicator Kit (needs assembling and electronics).

If it has a gold aluminum tub, shock towers, and rear motor-plate with chrome wheels (plastic or aluminum), it's the original Traxxas Bullet Kit (needs assembling and electronics).

If it looks like any of the above, except has larger tires, it is one of the truck versions (Traxxas Hawk or Traxxas Hawk2). The Hawk has the motor on top of the transmission, the Hawk2 has the motor on the bottom of the transmission.