Under the Karma Revero GT hood lies a GM-sourced 2.0-liter turbocharged four-cylinder engine (a repurposed Pontiac Solstice GXP unit) that produces a maximum 235 horsepower and 258 lb-ft of torque. The exhaust pipes dump out just behind the front wheels.
The Karma Revero GT battery pack runs down the centerline of the car in what would appear to be the car’s prop-shaft tunnel. The batteries’ capacity is 21.4 kilowatt-hours, of which 18.9 kW-hrs are usable. (For the sake of comparison, the Chevrolet Volt’s battery capacity is 18.4 kW-hrs).
At the rear of the car are two AC permanent magnet synchronous traction motors that provide a combined 403 horsepower and a whopping 981 lb-ft of torque for propulsion.
Charging the lithium-ion batteries through the car’s onboard 6.6-kW charger at Level 1 (120 volts at 16 amps, like a typical household outlet) will take 10 hours. At Level 2 (240 volts at 32 amps), that time drops to 3 hours, 45 minutes. Using Level 3 (480 volts at 110 amps) and an off-board 40-kW DC/DC quick charging station similar to a Tesla Supercharger, reaching 80 percent of the battery’s capacity takes just 24 minutes.
The Revero’s solar roof contributes an almost infinitesimal 0.2 kW to the car. With 9.5 gallons of gasoline and a fully charged battery, the EPA says the Revero will first travel 32 miles as an EV then an additional 188 on the gasoline generator for a total range of 220 miles.