Without wanting to put a downer on this the same guy lapped a Honda Civic on the same track 7.2 seconds faster.
There's definitely a tongue in cheek aspect to this, it's thinly veiled, but the inclusion of a Diesel SUV and an Autobahn cruiser (which even Sutcliffe says he's expecting to be rubbish on track) with the Tesla is more about the unsuitability of all of them to a race track.
Fantastic road cars, great at the drag strip, but weight is the killer on track no matter how low down it is in the vehicle. It would be interesting to see the Roadster's time on the same circuit (I think it would suit the car )
As for 0.7 seconds difference being down to "operator error" I'm not sure: Sutcliffe is a decent hot shoe.. Maybe 0.1 margin of error, but 0.7 would be a fair chunk for someone with his experience.
** EDIT: For the sake of fairness I just realised and should point out the P85D was from a standing start whilst the Civic a flying lap. This probably accounts for a big chunk of the time, though unlikely all of it.