Steel is still the material of choice because:
Steel is not "STEEL"
It comes in many strengths, hardnesses, crack and fatuige resistance types.
Newer cars use brake hoses made of rubber. Older cars use brake lines made of steel.
Iron is used to make the steel, which most cars frames, bodies, bolts and engine internals are still made of.
Cars made from aluminium use less fuel than cars made from steel because aluminium has a low density this makes the car to be lightweight. Whereas with steel, it has a high density so it makes the car to be very heavy. So if steel was used over the same journey more fuel would have to be used and therefore less fuel would be used if you used the metal aluminium.
On all new Volkswagen cars!!
Strength and price.
The primary building material in steam locomotives was steel and cast iron. In freight cars the basic frame was made of steel and cast iron, siding was mostly wood with some steel fittings. Passenger cars were made primarily of steel with fabrics used in the seats and such. Most passenger cars made liberal use of wood for interior walls and cabinets. The trucks were made of a combination of cast iron and steel. Side frames were usually cast while wheels and axles were usually steel
joint supply is when the production of one good also results in the production of another. an example of this would be steel and cars. if there is more production of steel, there can be a greater production of cars, as steel is used in the manufacturing of cars.
Steel is strong and durable. Steel is also easy to mold into different shapes. Cars are also being made out of aluminum, plastic, and carbon fiber.
if you mean the exhaust pipes it depends on the car. older cars were usually made of steel. now they use stainless steel alot.
Stainless or galvanized steel
Steel - strength Aluminum - light weight
If they're chromed steel you can use the same polishes and waxes as people use on cars and motorcycles.