The Audi Allroad Shooting Brake e-tron quattro concept, capable of 149mpg and 45g/km CO2, has been shown at the Detroit Motor Show.
Three Range Rover Diesel Hybrid prototypes have completed the ultimate engineering sign-off test by traversing 13 countries over 53 days from Solihull, UK, to Mumbai, India.
The Mitsubishi Outlander PHEV (Plug-in Hybrid Electric Vehicle), with official tailpipe emissions of just 44 g/km CO2, has completed the Asia Cross Country Rally.
The new Lexus GS 300h promises class-leading benefit-in-kind tax rates of 13 per cent, thanks to segment leading CO2 emissions of 109g/km, along with 60.1mpg, from its 2.5-litre full hybrid powertrain.
The BMW Concept X5 eDrive can return 74.3 mpg, emit less than 90g/km CO2, and drive for 19 miles, and at speeds of up to 75 mph, on electric power alone thanks to its plug-in hybrid drive concept.
Forthcoming Range Rover Hybrid and Range Rover Sport Hybrid models will be capable of 26 per cent lower CO2 emissions, at 169g/km, and 44.1mpg (combined).
The new Mercedes-Benz S 500 PLUG-IN HYBRID returns 94.2 mpg and has emissions of 69 g/km CO2.
Audi has won the 2013 Le Mans 24 Hours with a diesel hybrid race car and quattro four-wheel drive for the second time in succession.
The SEAT Leon Verde plug-in hybrid prototype has an official combined economy figure of 176.6 mpg along with 36 g/km CO2 emissions and a 31-mile electric-only driving range.
Production of the Volvo V60 Plug-in Diesel Hybrid is being increased by 90 per cent to cope with strong demand for the cars across Europe.