Trust me, the Tesla will feel much faster, especially from a standstill. Almost impossible for you to get 3.1 out of the GTR. You can get 3.2 out of the Tesla with your Grandma driving. My first Tesla was the P85+. It had a slower 0-60 time than the Porsche 911S it replaced, but was MUCH faster than the Porsche in real world driving. The only thing the 911 had over the Tesla was cornering, which you can't safely take advantage of off the track. The accelerator, on the other hand, I notice every time I drive!Even with a fully loaded P90DL, it might still be slight slower than my GTR at 0-60 3.1 seconds. Both fast cars, I would rather to reach that time with 7 people in the car tho.