Toy cars have been around for as long as there have been cars. Toy cars run the quality line from high-detail die-cast models to simple plastic frames on metal wheels. Some models are meant to be played with, other meant to just look good. Some toy cars might have a feature that makes tham more than a frame on some wheels: a steering wheel, light up lights, etc.
Now Thoughful Toys, Inc has introduced the Modarri line. A series of toy cars that kids assemble themselves and drive with their fingers. They include such details as real steering, soft gripping tires, and real suspension to smooth out bumps and jumps: