Acura TL 4WD is a four-wheel drive version of the Acura TL, a mid-size luxury sedan manufactured by Honda for its Acura brand. The standard Acura TL is available with front-wheel drive only, however the four-wheel drive version was offered between 2004 and 2008. The 4WD system uses a viscous-coupling center differential to split the torque between the front and rear wheels, and improves the TL's traction and handling in inclement weather.