Improve appearance
self starters
Helps improve fuel mileage.
Banned cars
It prevents the body from rusting.
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
I am pretty sure it was made either to make money or to improve cars
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.
bying cars that get more miles per gallon of gasoline