8 Cylinder Luxury Cars Range Rover 4.6 V8 Mercedes S 320 Jaguar XJ8 4.0 Lexus LS400 Annual mileage 15,000 AUTOGAS:15mpg Litres Used:4,546 Cost At £0.40/litre £1640 Petrol:17mpg Litres Used:4,009 Cost at £0.98/litre £3928 Estimated saving over 15,000 Miles £2288 Cost Of Conversion From Just £1395	4 Cylinder Family Cars Ford Mondeo Vauxhall Vectra Honda Accord Toyota Avensis Annual mileage 15,000 AUTOGAS:30mpg Litres Used:2,273 Cost At £0.40/litre £909 Petrol:33mpg Litres Used:2,068 Cost at £0.98/litre £2026 Estimated saving over 15,000 Miles £1117 Cost Of Conversion From Just £995