Tesla’s new all-wheel-drive Model S, the P85D, represents another instance of an automaker using all-wheel-drive technology to improve performance as well as all-season traction. I know this ...

With two drive motors, the new Tesla Model S P85D boasts insane acceleration and all-wheel-drive, while new sensor technology enables adaptive cruise control.

Not even a year ago, I listened patiently as an arrogant German executive dismissed the Tesla Model S as not quite a real car. "Venn vas the last time," he gutturaled, "you haf seen a Tesla ...

It was just after 6 a.m., and I had just collected the fastest-ever Tesla, the Model S P85D, for a photo shoot in Brooklyn. Snow was in the forecast, so efficiency and timeliness were of the essence.

Tesla’s all-wheel-drive version of the Model S P85D, known as The D, skates the ice of Lake Geneva, Wis., on February 7, 2015.

Forget the Tesla Model S P85D’s jaw-dropping zero-to-60 mph time of 3.2 seconds, though that’s as fast as a Porsche 911 Turbo.

Tesla just made Consumer Reports history. The product testing agency on Thursday gave the new high-performance P85D version of the automaker's Model S a rating of 100 — a perfect score ...

According to Elon Musk’s Twitter page, the Tesla Model S P85D will get a slight acceleration hike after a wireless software update.

Zero-to-60 in 3.1 seconds? WOW. But besides that, is Tesla's titillating piece of all-electric automotive technology ready for prime time? Our review finds out.

Tesla's newer dual-motor performance Model S puts the company on a whole different playing field.

An exclusive from Motor Trend: We track-test the incredible new 2015 Tesla Model S P85D. Get the full story, with plenty of unique Model S P85D photos.

Model S P85D. Tesla marketing materials claim the dual-motor Model S has 691 horsepower, that number the result of adding the outputs from the 221-hp motor in front, and the 469-hp motor in back.