The Daily Mail reports (perhaps a bit unskeptically) claims by Peugeot that their new petrol/compressed air hybrid engine will deliver 117 mpg by 2020.
Brian Wang of nextbigfuture.com gives a more conservative estimate of 81.1 mpg, plus a purchase price / CO2 emission comparison with conventional petrol and alternative hybrid systems. If low CO2 is seen as value (and government incentives - e.g. this - could make it a factor for the car user), then Peugeot's offering looks like value for money, turning green chic into simply practical.
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