The 1975 Australian Tourist Trophy was a motor race staged at the Calder circuit in Victoria, Australia[1] on 25 May 1975.
[3] The race, which was contested over two heats, was won by Peter Warren driving a Bolwell Nagari.
[5] The first heat was won by Peter Warren and the second by Steve Webb, both driving Bolwell Nagaris.
[1] The decision was then revised with Trevethan determined to be the winner, having finished higher in the second heat.
[1] Warren lodged a successful protest based on his faster combined heat times, as per the race regulations.