The word "differential" refers to a difference or distinction between things. It can also describe how one thing varies or changes compared to another. Full definition
While not literally a limited slip differential in the front and back, this is still extremely effective. (mechanics.stackexchange.com)
At high speeds and when accelerating out of corners, the electronically controlled rear differential lock with fully variable torque distribution also acts to provide greater driving stability and traction. (porsche.com)
Active Drive II adds a low - range, while the Active Drive Lock adds a rear locking differential for off - road power control. (topspeed.com)