Just wondering whether anyone had done it? I'd rather run one car than having to run one toy for the weekends (which gets hardly any use due to the crap weather) and one diesel car for work, so if I could get a Focus RS to go to work in and run in on LPG even though it would be doing a fair amount of mileage a year (18-20k now, used to be 30k) I wouldn't have any more of a fuel bill than on my Escort Turbo Diesel and I'd be driving a car I actually liked! And I'd only have to tax, insure, repair and service one car.

Anyone done it then?

PS What sort of mpg do you get out of a Focus RS in standard form?