There any norms for making cars with standards of metal sheets?

Question

japanes and far east countries cars are made up of very thin metal sheets of metal ,does this satisfy the standards of safty insurence roadgripe not toppling on turns and weight to antiskedding and the carrying capasity

Answer 1

Try this site and see if you find something.

http://www.nhtsa.dot.gov/

Answer 2

go for books on motor cars and view the rating of cars you are interested in, site like "crash testing"