Amaroo Park Raceway was a 1.930 km (1.199 mi) motor racing circuit located in Annangrove, New South Wales, in the present-day north-western suburbs of Sydney, Australia.

Amaroo Park was built by Industrialist Oscar Glaser as part of a plan to build a full motorsport complex.

[2] The first motorcycle meeting was held on 26 February with a 30 lap production race won by Larry Simons on a BSA Mk.ll Spitfire in heavy rain.

The final driver, Andrew Papadopoulos driving an Alfa Romeo GTV, crossed the line at 4:40 pm bringing the curtain down on one of Australia's most popular race circuits after over 31 years of continuous operation.

At its closing the outright lap record for the 1.94 km circuit was 0:44.36, set by John Bowe in 1987 driving a 5.8L Chevrolet powered Veskanda C1 sports car.

Popular with spectators and easy for Sydney's Channel 7 to telecast, it became the backbone of the Sydney touring car scene, a scene which once consisted mostly of privateers who have largely disappeared since Amaroo closed, with the major touring car teams now operating from Melbourne and south-east Queensland.

On many occasions these events featured larger grid numbers than did the rounds of the national level Australian Touring Car Championship.

This was mostly as the large number of Sydney privateers who usually filled the grid in the nationally televised (by Ch.7) Bathurst 1000, rarely raced outside of NSW or Queensland due to limited budgets.

It was only from the beginning of the "Group A" category in Australia in 1985 that the headline teams started appearing in the series on a more regular basis, with part of the reason being that as Group A was new to Australia in 1985, the AMSCAR Series gave teams valuable testing under race conditions (also because from 1985 Amaroo would hold an annual round of the ATCC).

Frank Gardner's JPS Team BMW and its drivers Jim Richards and Tony Longhurst dominated from 1985 to 1987 (Richards in the 635 CSi was unbeaten at Amaroo in 1985 winning all 12 AMSCAR races, the ATCC round and the Endurance Championship race), while Gibson Motorsport, first with Nissan and later with Holden, also contested the series in the later years of Group A and into the new 5.0L V8 formula introduced in 1993, with Jim Richards winning in the team's Nissan Skyline GT-R in 1992 while Mark Skaife won for Gibson driving a Holden VP Commodore in 1993.

The increasing national popularity of the Australian Touring Car Championship, improvements in Channel 7's ATCC telecast, and the 1991 economic recession which saw a number of privateer teams only racing in the two ATCC rounds in Sydney and the Bathurst 1000, all gradually reduced the grids until the AMSCAR Series was discontinued after the 1993 season.