Record-breaking drive in the Audi 100 2.5 TDI (1989)

In 1989, an Audi 100 completed the 1,860 kilometer (1,156 miles) journey from Moscow to Berlin with an average fuel consumption of 3.9 liters/100 km (60.31 US mpg). Shortly before, Audi had achieved a spectacular personal best which found a place in the Guinness Book of Records: 4,818 km (2,994 miles) across Central, Southern and Western Europe on a single tank of diesel – an average fuel consumption of 1.76 liters/100 km (133.64 US mpg). A longer gear ratio, increased tire pressure and a restrained road speed were instrumental in achieving this fantastic result.