All four wheels are driven by the engine. AWD systems use a center differential to allow the front and rear wheels to rotate at different speeds. AWD provides better traction than front or rear-wheel drive. Alloy wheels are less prone to corrosion and can be significantly lighter than the equivalent steel wheels. Alternator A device that converts rotational energy to AC current.
Alternators provide energy for the vehicle electrical system.
The alternator also recharges the battery. Regulations requiring vehicle manufacturers to include content information on vehicle labels for cars and trucks for sale in the U.S. after October 1, 1994. Commonly called ABS, such a system can control all four wheels or only two. An anti-roll bar does not affect suspension stiffness when both wheels are deflected equally in the same direction. Often incorrectly called a sway bar.