Maybe of interest to anyone who might have a similar problem. Not long after acquiring my Granturismo I discovered that refueling was extremely arduous as nozzle constantly clicking out. I think I mentioned it across the board with degrees of interest but no answers. I have a good friend who deals with Porsche who painstakingly poked, prodded and dismantled until eventually discovered that the breather charcoal filter was totally chocked, (what on earth was the previous fuel source??) in fact double its weight. A new one at about £100 and bingo. Great result and easily fixed if only one knew where to start looking. Anyone with a similar problem, check this out first. Dave Jenkinson