
Meredith Rodney McKay and John Sheppard racing cars in an Atlantis hallway.
A Remote-controlled car is a Tau'ri toy from Earth. It consists of a small car, which receives radio signals and interprets them as movement commands, as well a hand-held controller that sends them, thus controlling the car from a distance.
Meredith Rodney McKay and John Sheppard were racing the cars shortly before Michael Kenmore invaded Atlantis. (SGA: "The Prodigal")