Audi 100 three-speed automatic transmission sourced from Volkswagen. The Audi 100 included a rough engine note that was described as unlikely to discourage buyers whose first car had been a Volkswagen and who aspired to drive a diesel powered (pre-turbo) Mercedes-Benz. The Ingolstadt production line was at full capacity, but supply fell short of demand that during the summer of 1970 an additional production line for Audi 100s was set up in Volkswagen's own Wolfsburg plant, which made it the first water-cooled car to be produced in Germany's (and by some criteria the world's) largest car plant. For the Swiss market, the
Audi TT claim average fuel consumption for the Coupé variant with this 2.0 TDI engine is , which achieves a CO emissions rating of 139 gram/km. The Roadster TDI achieves an average and CO of 144 gram/km. As an additional package a standard Audi TT can be bought from factory with a special body kit upgrade to make it look like the Audi TT-RS version. The upgrade includes a fixed rear spoiler, and Alcantara/leather sports seats (Silk Nappa, Fine Nappa leather optional). At the 2008 North American International Auto Show (NAIAS) in Detroit, Audi released the first Audi "S" model of the