Our spy photographers braved -20°C in order to capture images of Volkswagen’s Jetta Hybrid previewed at the 2012 Detroit Motor Show.The hybrid pairs a four-cylinder 110kW 1.4-litre turbocharged petrol engine with a 20kW electric motor. The new hybrid, in electric only mode, is capable of reaching speeds of up to 70 km/h. Driving solely on electric power won’t get you very far, with a range of just 2km, but it's still enough of an electric powertrain for VW to call the Jetta Hybrid the "most fuel-efficient Jetta in the line-up." HYBRID WITH DSG?It has a combined estimated fuel consumption rating of 5.2l/100km and covers 0-100km in nine seconds when electric and petrol power are used in tandem.This is VW's second hybrid, following the Touareg Hybrid. The Jetta Hybrid may be the first hybrid to use a seven-speed dual-clutch automatic transmission, but the way the clutch decouples the engine from the drivetrain when the sedan is using just the battery for power is similar to how Porsche hybrids work. The new model sports minor cosmetic changes on the exterior such as "a new front airdam, a rear diffuser, and an integrated rear spoiler," says VW. The Jetta Hybrid will become available yet in 2012 and VW claims it will be "competitively priced with other compact hybrids."