I have never come across a XC 70 bi-fuel (original LPG equiped from volvo). Is it available? If I would buy a XC70 on gasoline and I want to put in an installation to drive on LPG, do I have to change the cylinderhead and valves too? How are the experience with the xc70 anyhow? Worth buying or not? How does it behave on snowy routes? thanks,