Back in the day, dieselpowered Mercedes-benzes were favourites of farmers because they did not pay duty on the farm diesel they used for their tractors and trucks (and, therefore, their Benzes, too). That’s why, in the early 1960s, waiting lists were long… Thinking of the Solex/zenith/ Stromberg carburetion as mentioned in the article, the W123 Mercedes-benz 200 used a Stromberg, a constant-depression design like the SU. Other descriptions for constant depression are “constant vacuum” and “constant velocity”, meaning the design aims to keep the air velocity through the carburettor constant. We also noticed the 190C test unit of 1963 had a white steering wheel, while later cars featured black wheels (with the exception of the six-cylinder models, which retained white). VW similarly changed the colour palette from white to black on the Beetle in the early 1960s. Sadly, in a recent move to new of ces, our own test photos of the “Fintail” went missing from our archive so we had to resort to using these heritage images from Daimler’s collection. Depicted top right is a W110 undergoing prelaunch testing.