. . yesterday I made my first tests with the new overdrive for my 4 1/2 litre Bentley and I would like to make you a big, big complement. In the normal speed range she cruises beautifully - absolutely no vibrations! Dr Volker Burkle, President Deutscher Automobil-Veteranen-Club Dear Tim, may I thank you very much for the unit you returned to me. Leo and I were so impressed with the workmanship that we require you to go ahead with the complete job. Carla & David Lipscombe, Price Albert Having driven GKT3 (20/25) and GOK48 (20hp) for many miles with overdrive units fitted, I have found the unit on my 20hp has really transformed the car into a fast, quiet touring vehicle. The extra speed at low revs has not compromised stability or smoothness, and the engineering techniques used by Tim Payne's unit are first class Keith Abraham, Rolls Royce Enthusiasts' Club Dear Tim, a note to let you know how pleased I am with the performance of the overdrive. The transformation is quite remarkable - greater than I had expected. The difference between 70mph at 2,500 revs and 60mph at approx 3,000 revs would seem to be greater than could be accounted for by the difference in revs. I shall certainly promote your product! Douglas Reece, Truro I only drove 50 miles on the motorway and I'm totally satisfied with the result. It really transforms the car and it will be a joy to take it on long distance trips. Heinz Schlule, Rolls-Royce Enthusiasts' Club