According to these 126 owners of the Model S P85D, they discovered that their cars are only delivering 469bhp instead of the claimed 691bhp and they want to be reimbursed. A lawyer representing the owners said that the car "has too low horsepower...And of course, it affects the car’s performance, according to the consumers.”
Tesla has since rejected the claims, saying that the vehicle meets requirements “according to the measurement method required by the authorities”.
Interestingly, the P85D has been reported to not make as much power as claimed nearly a year ago as Tesla advertised the power ratings simply by combining the individual power outputs of the two electric motors. This is said to be not an accurate gauge as factors like the level of charge could affect the figures.