The system claims to improve fuel efficiency by 45% and increase a vehicle's range by 90% as compared to conventional engines of similar power ratings. The system can operate solely on gasoline power, air power or a combination of both when high power acceleration is required.
http://www.youtube.com/watch?v=rjqFihLltSYIn small vehicles such as the Citroen C3 and Peugeot 208, the system is said to achieve a combined cycle fuel efficiency of 2.9-litres/100 km with an estimated CO2 emissions of 69 g/km.
PSA plans to introduce the system in their B segment models from 2016 in the first phase. C segment and light commercial vehicles will follow after that.