All-wheel drive

All-wheel drive is standard with the twin-turbo 3.5-liter V6. In good weather over smooth roads at modest speeds - when AWD is not needed - the system intelligently routes power only to the front wheels, improving fuel efficiency.
When driver input or road conditions indicate that slip might occur, the system sends power rearward to help prevent tire slip from happening in the first place (such as on rain-slicked or snow-covered roads).
A myriad of inputs enables the computer-controlled system to identify and immediately react - in as little as 16 milliseconds - to changing road conditions and driver demands. The amount of torque sent to the rear axle varies depending on road conditions and dynamic needs.
See also:
Airbag supplemental restraint system (SRS)
The airbag supplemental restraint system (SRS) is designed to work in
conjunction with the safety belts to help protect the driver and front
outboard passenger from certain upper body injuries. ...
MKZ Engines, Transmissions and Drive Systems
The 2013 Lincoln MKZ offers three distinct powertrains. The standard
2.0-liter four-cylinder EcoBoost® delivers the performance of a traditional V6
along with expected segment-leading fuel economy ...
Front passenger sensing system
The front passenger sensing system is designed to meet the regulatory
requirements of Federal Motor Vehicle Safety Standard (FMVSS) 208
and is designed to disable (will not inflate) the front pass ...
