Fisker Surf 2013 HD exterior, interior. Technology and Performance The Fisker Surf takes full advantage of the advanced, high-efficiency powertrain and the innovative space frame architecture of the Karma sedan it is based on. Mechanically, the cars are virtually identical. As the first true electric vehicle with extended range (EVerTM), the Karma – and now the Surf – use an innovative series-hybrid drive system in which the car is powered only by electrical energy. The onboard gasoline engine drives only a generator. A pair of powerful electric traction motors drive the rear wheels, taking energy from a 20 kWh lithium-iron-phosphate battery pack carried inside the car’s central tunnel. A 175kW generator supplies energy to the motors and the batteries. It is driven, only when needed, by the efficient 260 hp turbocharged and direct-fuel-injected gasoline engine. So just like a diesel-electric locomotive, the Fisker Surf driver always enjoys the instantaneous torque and smooth response, while the internal combustion engine coupled to the electric motors provide increased energy for maximum performance and extended range. Two driving modes, Sport and Stealth, are available to the driver at all times. In Sport mode, full power is available and the driver can command the unmatched 981 lb-ft (1330 Nm) of torque to accelerate from 0-60 mph in just 5.9 seconds, and achieve an electronically limited top speed of 125 mph (201 kmh). In the default Stealth mode, calibrated for …

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