Audi has unveiled the "near future" of its design and powertrain engineering at the North American International Auto Show (NAIAS) in Detroit.
The Allroad Shooting Brake show car will debut a new high-powered, petrol-electric plug-in hybrid drivetrain and highlight Audi's latest design principles.
It is thought the Allroad Shooting Brake will become the basis for future Q-badged models and a potentially extended Allroad range. Its lightweight bodyshell is a mix of aluminium and carbon fibre-reinforced polymer.
The system output is 402bhp, with 479lb ft of torque, thanks to a turbocharged 2.0-litre petrol engine and a pair of electric motors.
Linked to Audi's quattro four-wheel drive system, the three-door Shooting Brake can spring from rest to 62mph in just 4.6 seconds and has to be electronically reined in at 155mph.
The car is capable of 149mpg and 45g/km of CO2, according to tests on the current EU standard cycle, which some say is ill-equipped to properly evaluate plug-in hybrid cars.
Dr Ulrich Hackenberg, member of the board of Audi AG, technical development, said: "The show car combines sex appeal and highly efficient e-tron-quattro technology that produces 300kW of power, yet only consumes 1.9 litres per 100km of fuel (149 UK mpg) and cutting-edge electronic applications."
"We are offering very concrete glimpses of the near future in this show car."
Copyright Press Association 2014