BMW X1 2015 vs BMW X1 2012

BMW X1 2015: This generation BMW has Haldex Generation V proactive automatic four-wheel drive system which sends 100% of the torque to the front wheels by default. The system analyzes input from the ABS and engine control units and can increase pressure on the multi-disc clutch for faster engagement when needed. When wheel spin is detected, torque can be split evenly between the axles (50%/50%).

BMW X1 2012: BMW xDrive is a proactive all-wheel drive system without a center differential that engages before the vehicle becomes unstable, unnoticed by the driver. Torque is distributed between the axles via an electronically controlled multi-plate clutch located in the transfer case. Most of the time, the clutch is partially locked and power is transferred to both axles in a 40/60 front/rear ratio, but the system is capable of sending 100% of the torque to either axle. At high speeds or when parking, for example, the clutch is disengaged and all power is sent to the rear wheels. DSC (Dynamic Stability Control) also brakes the wheels individually to regain traction and assist in cornering.