|The New Compact Coupe. Click to enlarge.|
Volkswagen introduced its New Compact Coupe (NCC) hybrid concept at the North American International Auto Show in Detroit. The car, positioned between the Scirocco and the CC, offers combined fuel consumption of 4.2 L/100 km (NEDC), or 45 mpg US with an EPA rating. CO2 emissions (NEDC) are 98 g/km. Top speed is 227 km/h (141 mph) with 8.6 seconds required to accelerate to 100 km/h (0-60 mph in 8.1 seconds).
In the first half of the year, Volkswagen will launch its first hybrid model on the market under the VW label—an SUV with full-time all-wheel drive. The New Compact Coupe shows, both technically and visually, how Volkswagen envisions a front-wheel drive hybrid for the compact class.
The powertrain combines a TSI engine (gasoline-powered with 110 kW / 150 PS), an electric motor (20 kW / 27 PS), a 7-speed Direct Shift Gearbox (DSG), and a 1.1 kWh Li-ion battery. Volkswagen is using a four-cylinder version of the TSI gasoline engine range in the NCC. Direct injection, turbocharging and an intercooler generate the 110 kW of power from just 1.4 liters of engine displacement. Torque from the engine is 240 N·m (177 lb-ft).
The 20 kW electric motor is integrated between the TSI and the 7-speed DSG transmission; it can be used for pure electric driving, or it can support the TSI with aggressive torque. The power and torque of the two drive units supplement one another during boosting.
As soon as the driver releases the gas pedal, the TSI is disengaged from the transmission. This “coast-down” is even possible at higher speeds, as in freeway driving. With drag losses reduced, the NCC is able to coast for a longer period of time.
In braking, the electric motor recovers kinetic energy which is then stored in the lithium-ion battery. The New Compact Coupe also has a Stop-Start system on board to further reduce fuel consumption, especially in urban areas and in stop-and-go traffic.