Hi, first post as a newbie, have however already fixed a couple of issues with my car with info from this site. Well useful. I bought my car ( actually, my wife will tell you it is hers!) last year, and after the warranty expired, got a gas conversion fitted. Mine is a Prins fully sequential system, very tidy and well installed, with 75 litre tanks where the old fuel tank used to be. Useable 65 litres. If you get one fitted and don't have a towbar, make the decision if you will ever want a towbar as this will affect the tank sizes used. Make sure you use a decent system, Prins is good but expensive (approx £2600). It is fully automatic, ties into the existing engine management ecu and I have done nearly 12000 miles with no major issues at an average equivalent economy of about 35mpg. My conversion was done at a place called Hilton Autogas in Cannock, and the level of detail goes down to a body coloured filler. Good luck, and stick with the V8, in my opinion far nicer than the td5!! (controversial!)