Elon Musk took the lid off his own madness with the Tesla Model S P85D, the dual-motor, all-wheel-drive silent screamer with 691 horsepower and 686 lb-ft of torque. As if that weren’t_enough, the fully electric D offers an_“Insane Mode,” which unleashes the car’s full accelerative potential and enables_a launch-control function_for maximum thrust. Musk said he […]