[jbrucebmw]

LSD should be a factory option, not port or dealer installed. Limited Slip Diffs are key to the dynamics of rear drive sport sedans regardless of whether they wear an M badge. In the E30 era even the 318is had an LSD and it made a significant difference. They have been sorely missed since they were last seen in the non-M E36. BMW should not make people buy and M3, M5, M6 or pay labor to install an M accessory to experience a proper rear end.