The 1990's also included some setbacks for Volkswagen including various Volkswagen engines that had to be discontinued
. Among these was the Volkswagen wasserboxer, a horizontally opposed, boxer' engine, water cooled, and coming in various 4 cylinder sizes. It was produced for 10 years, used in 4 different obscure Volkswagen vans, and discontinued in 1992 due to inherent design flaws, not generally considered a loss for the industry.