The Signature Performance model is powered by a 416-horsepower AC synchronous electric motor producing 443 pound-feet of torque between zero and 5, 100 rpm, with a zero-to-60-mph acceleration of 4.4 seconds and a quarter-mile elapsed time of 12.6 seconds.

WSJ: 2012 Tesla Model S Signature Performance Review: I Am Silent, Hear Me Roar | Rumble Seat by Dan Neil