Thanks for all your input, but all things considered it's going to have to go. I don't have a garage to mothball the 260 and I don't have the space for another car to use as a runabout. I have enjoyed nearly 4 years of ownership and it is the longest I have ever owned a car. (A testament to its appeal) So if anyone is interested the details are as follows:

2004 54 MG ZT Starlight Silver. 34,600 miles with professional LPG conversion (Certificate supplied) Purchased as a pre-registered car in June 2005. Serviced every 5,000 miles. Have done the fuel clip, bonnet catch mod, diff oil, and have a top heater hose to fit. The alloys will need refurbing as the silver has started peeling off. Tyres have probably got about 1000 miles left on them and it will need another oil change at 35,000. Just had a new starter motor fitted. Interior and body work is immacculate. I have been offered £5,000 for it against a new Golf R32 or Focus ST
email me on ian.sandom@talktalk.net