The need for a very high-performance tyre to suit Autobahn-speed saloons and supercars of the Seventies (apologies for the alliteration) gave us the XWX. Exceptional grip and sustained high-speed performance are what the XWX is all about. And, as Michelin correctly reminds us, the XWX range tamed the era's paragons of performance on relatively slender widths. Makes you wonder why your neighbour's 100bhp shopping car actually needs the same section tyre as a Countach, doesn't it? There are seven tyres in the XWX range. This 215/70VR14 fits the Mercedes-Benz 450 SEL and the rear of the Lamborghini Countach.