The current Guinness Book of Records for the world-s smallest motorized car. It is a miniature version of Toyota-s first passenger car, the 1936 Model AA sedan. Its size is astounding: 1/1000th the size of the actual car or about the size of a grain of rice. Dimensions are: 4.785 mm long, 1.73 mm wide and 1.736 mm tall. The car has a total of 24 parts which come in 13 different types including body, tires, spare tire, wheels, axle, bearings, headlights, rearlights, front bumper, rear bumper, step, number plate and emblem.