The latest version of the Xbox One Wireless Controller sports textured rear grips as well as Bluetooth support, which promises better range as well as wireless support on Windows PCs without a dongle. (tomsguide.com)
A friend told me tires shops tend to overfill tires quite a bit and it could be reducing grip on the rear (mechanics.stackexchange.com)
Audi has complaints of the same problem, lack of rear grip and are now allowed to run the FIA spec diffuser. (sportscar365.com)