Mansory has been on the scene since the end of the 1980s and has made a name for itself festooning Rolls-Royces, Lamborghinis ...

low-resistance tires and aerodynamic wheels increase range, and grip, and reduce noise performance. Tesla uses Michelin special tires and has its in-house technology for wheels called aero wheels.

The white prototype was spotted in Palo Alto, close to Tesla's engineering headquarters. The details that hinted at the Performance variant were the Uberturbine wheels and the red brake calipers ...