|GN30668 MOTORING Citroen hybrid air car |
June 5, 2013 -- Peugeot’s award-winning Hybrid Air system combines a petrol engine with a high-pressure air tank rather than heavy batteries to store recaptured energy. Air power can boost both fuel economy and cut CO2 emissions by as much as 45 percent. Graphic shows principle of hybrid air energy storage. Prototype Citroen C3 has achieved fuel economy of 2.9 litres per 100km (81mpg), and CO2 emissions of 69g/km.