Differentials are what allow the wheels on a vehicle to actually move around effectively. Open differentials are common, but limited-slip ones are special.

So you bought a 335i, because let's face it, they are a performance and luxury bargain, and you want to modify it, make it faster and improve its handling. But BMW never offered a factory limited-slip ...

It's often said that it's never too late to learn, and that's great-but then youthful curiosity is a wonderful thing too. As an example, how many budding street rodders discovered early on that it was ...