Thanks very much for the comments folks, much appreciated! I spent around 7 hours on it, and to be quite honest I could have spent longer. I only tickled the engine bay but could have easily spent a couple of hours on it. I could have also spent longer on the wheels!
It's in stunning overall condition too, I'd love to know how much it's worth!
I'll be doing the owners Range Rover, Bentley GTC V8S and his Bentley Mulsanne fairly soon too, all of which I'm looking forward too!