Thank you, Driver + Passengers, for answering my Techie query. Not knowing anything about turbos and their workings you have made me happy. Don't much like strange noises. Now for that scrapping sound.......

On the way to visiting my daughter, just 9 miles up the road, I decided to give the old girl (mazzie) a blow-out. Reached the dizzy heights of 70mph and going along nice and smooth. Just mentioned to my wife, Brenda, that I believe that Mazzie seems to be at her happiest at high speed; all of a ...