We appear to be in the modern era of manufacturers underrating their cars. Porsche is the latest automaker found to be giving buyers more power than promised. MotorTrend took a yellow 2020 911 Carrera S to the dyno to see what sort of power the car made.
Porsche rates it at 443 hp and 390 lb-ft of torque at the crank. Typically when figuring power, you expect a car to lose about 15% of what it is rated for at the crank at the rear wheels.
The Porsche 911 Carrera S made 414 hp and 406 lb-ft of torque at the wheels. That is more torque at the wheels than the car is rated for at the crank. The real crank numbers are believed to be more in the area of 487 hp and 478 lb-ft at the crank.
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