Supercars will race under lights in 2018 after a night race was confirmed at Sydney Motorsport Park next August.
The 16-event championship calendar was released on Wednesday with the night race and a new event at the AU$110 million Tailem Bend circuit in South Australia the main changes.
The 2018 calendar also boasts a full championship round at the Australian Grand Prix for the first time.
The night race at Sydney Motorsport Park will be a 300km race from 7pm on August 4.
Supercars chief executive James Warburton said holding a night race had long been a goal of the championship.
