Audi presents the A8 hybrid as a technology concept at the Geneva Motor Show. Its two engines – a 2.0 TFSI and an electric power unit – develop a combined total of 180 kW (245 hp) and deliver 480 Nm (354.03 lb-ft) of torque, enabling them to provide the confident driving performance of a large six-cylinder engine. And combined with the advantages of electric power, the consistent downsizing also pays substantial benefits in fuel economy – with an average consumption of just 6.2 liters (37.94 US mpg) per 100 km, corresponding to a CO₂ value of 144 grams per km  (231.75 g/mile).

The Audi A8 hybrid utilizes a parallel hybrid system – a highly efficient principle that avoids any unnecessary friction and power losses. Interposed between the four-cylinder gasoline engine, which delivers 155 kW (211 hp), and the eight-speed tiptronic is a powerful electric motor. It develops 33 kW (45 hp) of power and a very ample 211 Nm (155.63 lb-ft) of torque. The two power units together develop a system power of 180 kW and 480 Nm (354.03 lb-ft). This enables the Audi A8 hybrid to accelerate in 7.6 seconds from zero to 100 km/h (62.14 mph) and to achieve a top speed of 235 km/h (146.02 mph).

The A8 concept car is a full hybrid. This means that it can be propelled by either the gasoline engine or the electric motor alone – or by the combined power of both. During coasting or braking, the electric motor acts as a generator that converts kinetic into electric energy and recharges the battery. The hybrid drive can propel the car on electric power alone at up to 65 km/h (40.39 mph) with a range of over two kilometers – enough for urban stop-and-go traffic.