hi there i think that cars are made from lots and lots of materials but to know wich is usefull for the environment like heat and wind and sun exposure and friction and stability u have the choice to build a tough heavy strong vehicle or build a light weak body that is cheap
really i don't know why nations like China for example doesn't sell heavy tough stable expensive cars
and nations like Germany build the most cool cars in the world like Mercedes and BMW and VW
you should know that to build a car u cant put a heavy big engine like corvette into a kia Sportage for example and vice versa
now the easy part to start with is the Salone the interior that is built from leather or else it can be tailored to fit the seats and doors
