Drag Times has gone and measured the Tesla Model S P85D against… itself. The electric, all-wheel-drive sedan has two modes, Sport and Insane, so Drag Times found a lonely stretch of road, lashed up a ...

In what the car's instrumentation describes as "Insane Mode," Tesla's all-wheel-drive, 691-horsepower Model S P85D electric sedan can reach 60 mph from a dead standstill in just 3.1 seconds.

At an event last night, Elon Musk finally gave us the D: A dual-motor, all-wheel-drive version of the Tesla Model S. On the top-of-the-line P85D, that second motor brings the max speed up to 155 mph ...

In a press conference today, Tesla Motors CEO Elon Musk announced one that's sure to get the attention of current and future Model S P85D owners -- a "ludicrous speed upgrade" (thanks, Mel Brooks) ...