What are the different types of pull back toy cars available in the market and how do they work?

There are various types of pull back toy cars available in the market, including friction-powered, wind-up, and spring-loaded cars.

Friction-powered cars use the force generated by rubbing against a surface to propel forward when pulled back. Wind-up cars are powered by winding a key or lever, which stores energy in a spring that is released to move the car forward when pulled back. Spring-loaded cars have a coiled spring mechanism that is compressed when pulled back and released to propel the car forward.

Overall, these pull back toy cars work by converting stored energy into kinetic energy to move forward when pulled back and released.