A test race open to Superbikes was held in July 1990 and the circuit was officially opened by then-New South Wales Minister for Sport Bob Rowland-Smith on 10 November 1990 with the running of the Nissan Sydney 500 endurance race for Group A touring cars.

In 1991, the consortium formed to fund the circuit suffered financial problems and the complex was purchased by the New South Wales Government.

[2] On 11 August 2006, the Sydney Morning Herald reported that Ron Dickson, the A1 Grand Prix circuit designer who also designed the Surfers Paradise Street Circuit, suggested that Sydney Motorsport Park was not up to modern standards and needed to be upgraded.

The upgrade also included an additional pit lane facility to cater for the new configuration, a new race control tower and new amenities buildings.

The New South Wales Government saw this as an opportunity to bring the race to Sydney and in October 1990, a deal was made for the Grand Prix to be held at what was then known as Eastern Creek International Raceway from 1991 to 1993.

In the early 1990s, the circuit also hosted the Winfield Triple Challenge, an event which featured Australian Touring Car Championship (ATCC) teams and drivers alongside Superbikes and drag racing.

Further to this, the circuit hosted the season-ending Grand Finale in 2003 and 2004, with Marcos Ambrose winning the round and the championship title on both occasions.

[17] The 2015 test day clashed with the 2015 Liqui Moly Bathurst 12 Hour, preventing V8 Supercars drivers from competing in the race.

[18] Between 1992 and 1995, the circuit hosted a non-championship Triple Challenge event in late January consisting of touring cars, Superbikes and drag racing.

[19] In practice for the 1995 event, the Winfield-backed entry of Mark Skaife had a major accident at Turn 1, hitting concrete drag racing barriers which resulted in injuries that forced him to miss the first round of the 1995 Australian Touring Car Championship.