Seat belts, yes.
if the car didn't come with seat belts on those seats from factory you don't need them. but i'd say put seat belts in anyway you can never be to safe.
Yes, the 68 VW came with seat belts for both front and back sets. The front seats for the Beetle were 3 point retractable seat belts and lap belts in the rear.
if they didnt come with them from the factory no, but if someone took them out after the car was made then yes
go to modernperformance.com they have the underdrive pulleys that come with the belts so you dont have to try to find one.
yes quite a few still use the bench seats. Such as the dodge charger or the Chevy corvet alot of the sports cars still use the bench seats. If you look at ford mustang many of them come with bench seats.
a wool fabric
No, the 1957 Chevy didn't come with seat belts.
lap belts only lap belts only
Not if they did not come from the factory with seat belts. If they came form the factory with seat belts you are required to wear them.
No.
The Dodge Demon first came onto the market around 1971. It did not sell very well and only sold 40% compared to the Duster. I hope this answer was able to assist you and your needs.
Women's belts generally come in the sizes XS, S, M, L, and XL. Men's belts come in many sizes, and generally, a man would choose a belt that is two inches longer than the waist size of his pants.