Fuel

LPG/Autogas are used in dual fuel cars

Gasoline and LPG

The MPG isn't  very good for models like Urban 21, Extra Urban 38, Combined 29 - but Autogas costs about half the price of gasoline

The emissions MUST be the same/As much CO2 as Gasoline because the road/emissions taxes don't make the car any cheaper

L.P.G. = Liquid Propane Gas. The engine will run cleaner on L.P.G. but will not get much better mileage.