Powertrain And Performance
At the Fremont event, Musk said that the Model S Plaid’s 0.208 coefficient of drag is a “true 0.208," noting it was measured with the car in motion and the wheels turning rather than stationary in a wind tunnel.
Any way you slice it, the Model S Plaid boasts some seriously impressive figures. Its 1,020 horsepower comes by way of a triple motor setup (two up front, one in the rear), a configuration which now allows for rear torque vectoring. And thanks to a larger radiator and a new heat pump, the automaker says that the Model S Plaid will deliver this power repeatedly rather than degrading over extended use and during repeated acceleration sprints (as was the case in previous iterations of the Model S).
Along with a new structural battery pack that utilizes Tesla’s new, more efficient 4680 lithium-ion cell design, the Model S Plaid is said to catapult to 60 MPH in just 1.99 seconds (not including rollout) and run the quarter mile in 9.23 seconds at 155 mph. If verified by independent testing, these figures would make the Model S Plaid the quickest accelerating production car ever made. Special wheels and tires that are projected to be available later this year should also allow the Model S Plaid to reach a top speed of 200 MPH.
The Model S Plaid uses a tri-motor setup in which one motor powers each of the front wheels and a third motor provides power to both of the rear wheels. The design allows for rear-wheel torque vectoring, which should enhance the car’s handling capability.
That impressive top speed figure is achieved without the use of a two-speed transmission thanks to a new motor design that features carbon sleeved rotors. “This is a super-hard thing to do because carbon and copper have very different rates of thermal expansion,” Musk explained at the Fremont event. As such, Tesla had to design and create a machine to produce these new motors, which can turn at rates higher than 20,000 RPM. The carbon sleeves are required to prevent the rotors from being damaged due to the massive amount of centrifugal force that would be applied to them at those speeds.
Under normal driving conditions, the Model S Plaid’s new battery and powertrain configuration is said to deliver 390 miles of range on a single charge, though it should be noted that this estimate applies to base Plaid models with 19-inch wheels – examples outfitted with the optional 21-inchers that enable the aforementioned top speed will see that range reduced to about 350. Regardless of which wheels it rolls on, the Model S Plaid should able to get 187 miles of charge from one of Tesla’s Supercharger stations in just 15 minutes.