We first saw Volkswagen's plug-in petrol-electric hybrid Cross Coupé concept at the Tokyo Motor Show. Now there's a new Cross Coupé concept to be shown at the Geneva Motor Show this week that use a turbodiesel direct injection engine (TDI) and two electric motors to achieve 1.8 liters per 100 km (around 157 mpg) with CO2 emissions of just 46 g/km.

The Cross Coupé is proof that achieving 150 mpg is not just the realm of asthmatic shopping trolleys as the 225 kW Cross Coupe has a top speed of 220 km/h (137 mph) and a curb weight of 1,858 kg (4,096 lb).