The racing pedigree of the Morgan was enhanced in 1972 and 1975 when Robin Grey driving a Plus Eight won the Fred Dixon Modsports Championship and Chris Alford won the 1975 BRSCC Production Sports Car Championship in a 4/4. MMC II, the first production Plus Eight, took the BRDC Production Sports Car Championship in 1978, this was followed with victory in the BRSCC Production Sports Car Championship in 1979. The drivers were Charles Morgan, the grandson of the founder, and Rob Wells. Morgans were prominent in the only 24 hour race held in Britain at this time covering the greatest distance by a single car entry in the Willhire event at Snetterton in 1980, 81, and 82. In the USA Tony Arutunoff won the US National Production Championship in class H and in 1982 both British National Sports Car Championship belonged to Morgan with Steve Cole winning in Prodsports with his ultra-lightweight Morgan famous for its one-piece alligator body.
In 1989 the capacity of the Plus Eight was increased from 3.5 to 3.9 litres and this ensured that the Plus Eight continued to be one of the fastest accelerating roads cars. The German magazine “Auto Motor und Sport” crowned the Morgan Plus Eight as the fastest car they had ever tested in fifth gear, “the world champion for flexibility”.