My new to me model S85 says performance on the Carfax. It VIN check says "single motor-Three phase A/C Induction (standard or performance prior to 1-Aug-2015). The Tesla display button only shows S 85 and has no P on the back of the car. How can I tell if the car is performance? Was the P an option in 2014 or not available? It has chill mode and autopilot but sits on 19" tires. Any Ideas?