The 2018 Super2 Series (known for commercial reasons as the 2018 Dunlop Super2 Series) was an Australian motor racing competition for Supercars, staged as a support series to the 2018 Supercars Championship. It was the nineteenth running of the Supercars Development Series, the second tier of competition in Supercars racing.
The Bathurst 1000 support race returned to being a points-paying series round again after the 2017 Supercheap Auto Bathurst 1000 failed to draw wildcard entries and the accompanying Super2 non-series round saw a downturn in participation from previous years.[25]
The category returned to Barbagallo Raceway for a series round.[24] The round had been removed from the 2017 Super2 Series schedule to allow teams the opportunity to run wildcard entries in the Supercars Championship event, but no entries were received.
The series no longer hosted four-race format rounds.[26]
The Super2 Series no longer allowed "Project Blueprint" cars after fifteen years of use in Supercars and Super2 series.[27] They were replaced by the "New Generation" cars first introduced to Supercars racing in 2013, bringing the Super2 Series in line with the technical regulations of its parent series. The Project Blueprint cars were eligible to compete in the V8 Touring Car National Series, the third tier of the sport.