Uniquely, the Fisker Karma can run in one of two drive modes: Stealth and Sport. Stealth Mode maximizes efficiency, giving the car its greatest range on battery power before activating the gasoline engine-driven generator to sustain battery charge. In Stealth Mode, the Karma can accelerate from zero to 60 mph (97 km/h) in 7.9 seconds and achieve a top speed of 95 mph (153 km/h). With Sport Mode engaged, the gasoline engine drives the generator to provide enough electricity for 403 total system horsepower, allowing the Karma to accelerate from zero to 60 mph in just 5.9 seconds and achieve a top speed of 125 mph (201 km/h).