Tesla Rolls Out All-Wheel Drive, Autopilot Options

Elon Musk

In February Tesla Motors Inc. plans to begin delivering an optional dual-motor propulsion system that will give its Model S electric sedan four-wheel drive.

The "D" system modifies the suspension of the rear-drive car and adds an electric motor to power the front wheels. The same system is expected to power the Tesla Model X crossover vehicle due next year.

The all-wheel-drive option makes the Model S more competitive in snowy climates. CEO Elon Musk says the system in lower trim levels of the car should appeal to buyers who value traction over quickness.

Yet the system will enable the 85-kW high-performance "P" version of the Model S to zip from zero to 60 mph in 3.2 seconds one second faster than the current P85 model, according to the company.

Tesla also has begun equipping the Model S with a standard forward-looking camera, radar and multiple ultrasonic sensors. The new equipment initially will enable lane-keeping, blind spot warning, active cruise control and automatic lane changing simply by activating the turn signal.

Tesla plans a series of software upgrades that eventually will allow the car to use the same array of sensors to drive itself on the highway.

The so-called "autopilot" feature will be marketed as part of a package that includes such items as keyless entry, onboard maps and navigation, lighted door handles, a power liftgate, a GPS-enabled remote garage door opener and LED running, cornering and fog lamps.