This P6 caught my eye on ebay, with its LPG conversion, 5 speed manual, electric windows, etc. The interior looks like it's had retrimming in places, and I'd say the car has been set-up to use on a very regular basis. I think the car looks familiar, and I think it's maybe the one that was spotted in a scrapyard/salvage yard by Quattro a wee while ago? Certainly it had a boot rack, lots of upgrades, and was the same colour. I think it was done by a firm in Lancashire at huge cost? (JP restorations rings a bell)
http://www.ebay.co.uk/itm/1972-ROVER-P6 ... 3f25940133
http://www.ebay.co.uk/itm/1972-ROVER-P6 ... 3f25940133