Mass produced aluminum alloy wheels are almost always cast. This is a cheap production method that is preferred by car manufacturers, as it keeps the price of the wheels down. Cast wheels are not only cheaper than forged, they are also more brittle and heavier. This is why Lexani only sells forged wheels. Forging makes the metal stronger, which makes it possible to make bigger wheels without adding extra unsprung weight. Forged wheels can be made with thinner and fewer spokes and or more advanced shapes without compromising wheel strength and durability. If you want to upgrade your car, you should treat yourself to Lexani forged wheels. That is the only way to get wheels that make a real difference compared to cast original equipment wheels.