It’s one of those advertising slogans that we’re all familiar with but haven’t the foggiest idea as to what it actually means. ‘‘Vorsprung durch technik’’ has been part of Audi’s advertising campaigns since 1982 and apparently it means ‘‘progress through technology’’. Indeed, how could we be so stupid? And Volkswagen has followed with a similar catchy German slogan, with the strapline ‘‘das auto’’ featuring on their ads. It simply means ‘‘the car’’. Of course, you could have guessed that. And speaking of which, my son is looking for ‘‘das auto’’ and nothing less than a Golf will do. Oh, the corrupting power of advertising on young minds.Now fellow German manufacturer, Fendt, has followed the automotive lead and come up with its own catchphrase – ‘‘wer Fendt fährt führt’’. I don’t think it’s particularly easy to guess what this means in English. And despite what you might think, it has nothing whatsoever to do with flatulence or, indeed, human exhaust gas recirculation – it’s nothing rude like that. It simply means ‘‘leaders drive Fendt’’. Maybe they do in Germany, but it’s a bit of a sweeping generalisation.