Perkins Engineering was a team contesting the Australian V8 Supercar Championship Series, operating as an active racing team between 1986 and 2008. From 2009 onwards, the involvement of Perkins Engineering in the championship was wound back into a supply relationship with the newly formed Kelly Racing.

The 1991 Australian Touring Car Championship was a CAMS sanctioned motor racing title open to Group 3A Touring Cars. The title, which was the 32nd Australian Touring Car Championship, was contested over a nine-round series which began on 24 February 1991 at Sandown Raceway and ended on 11 August at Oran Park Raceway, The series was promoted as the Shell Australian Touring Car Championship and was won by Jim Richards driving a Nissan Skyline GT-R.