put nos in cars
Improve appearance
self starters
Banned cars
It prevents the body from rusting.
Helps improve fuel mileage.
A turbo.
it helped them so they don't hurt the environment
They fix cars and do stuff like that they also paint and improve them
No, it improves the safety of the occupants of the car. Thwere is no doubt that it does.
They take the "bounce" out of the suspension, improve the ride and handling performance.
I am pretty sure it was made either to make money or to improve cars
Electric cars are better for the environment but slower and have to charged almost daily. They will have to improve in performance before most people will buy one.