Many folks are aware of lsd, but there seems to be a confusion knowning what type is used where.
So, i dug up a kaaz website page link. It explains details for a layman.
Kaaz USA
The purpose is awareness to what type of car drive train system you have in your car if you have limited slip diff.
It is not enough to know a car is better than other one in some way. It important to know what else is inside the car other than engine.