mini 4wd

A mini 4WD is a 1:32-sized^[1] battery powered plastic model race car without remote control. All 4 rubber-tired wheels are driven, thus "4WD" for 4 wheel drive. Side rollers secure the vehicle against the vertical walls of the un-banked track for steering, providing very fast speeds compared to slot or RC cars. In Japan, Mini 4WD is also known as mini yonku (ミニ四駆) in Japanese.^[2] Though mostly popular in Asia, they have also been sold in the United States.