Just how powerful is the Tesla Model S? We already know its faster than most average sports cars. To test it out, the automaker was put on a dyno test a few months ago showing how it made 386hp at the wheels. Tesla rated it at 416hp previously.

Now, Autocar has put the rumors regarding the actual figure to test, rating it at 428.2hp, which is more than stated. Check it out in the dyno test video below: