The 'Martini' edition of 1978, was identifiable by a set of side stripes similar to those that appeared on the 1976 British Motor Show 911 Turbo which was clad with the stripes to celebrate victories in the World Manufacturers Championship and the World Sports Car Championship, as well as the fourth consecutive racing season with sponsors Martini & Rossi. The stripes were so popular that Porsche quickly made them an option available to any owner as a factory or retro fit.
