2013 Great Southern 4 Hour

The 2013 Great Southern 4 Hour was an endurance motor race held on 26 May 2013 at the Phillip Island Grand Prix Circuit in Victoria, Australia. It was Round 1 of the 2013 Australian Manufacturers' Championship and as such it was open to "modified production touring cars" complying with the technical regulations for that championship. The race was won by Bob Pearson and Glenn Seton, driving a Mitsubishi Lancer Evo 10.

Class structure
As the race was a round of the 2013 Australian Manufacturers' Championship, the following class structure applied.
 * Class A – Extreme Performance
 * Class B – High Performance
 * Class C – Performance Touring
 * Class D – Production Touring
 * Class E – Compact Touring
 * Class F – Hybrid / Alternative Energy
 * Class I – Invitational

There were no starters in Classes E, F or I.

Results
Note: Drivers listed in italics in the above table did not drive the car in the actual race.