There are currently 4 versions of the Supra that have been sold within the U.S. The MkI, as it is known, was sold from 1979 - 1982. The MkII was sold between 1982 - 1986.5 (it is widely credited with making the Supra popular. The MkIII, with a turbo variety, was sold from 1986.5 - 1992. The MkIV, the last version to be sold in the U.S., had a 320 HP twin-turbo version and was sold until 1998.