New versions of wheels are coming out every month. With the variety out there, there are also benefits to each style of rim. There are monocoque designs, they are stronger and single piece, a nice upgrade from the factory steel wheels you may have right now. Then there are ultra lightweight two piece rims, which are meant for more race type applications, reducing the weight of the rotational force, enhancing acceleration and breaking. The new wheel designs help provide the driver with better handling and are much lighter, reducing your over all curb weight, which will translate into better fuel economy, also helping increase the longevity of your engine and transmission