1971 Castrol Trophy

The 1971 Castrol Trophy was an endurance race for Group E Series Production Touring Cars. The event, which was staged at the Warwick Farm circuit in New South Wales, Australia on 2 May 1971, was Round 2 of the 1971 Australian Manufacturers' Championship.

Classes
As the race was an Australian Manufacturers’ Championship round, the field was divided into five classes, based on “CP Units”. The engine capacity, in litres, was multiplied by the retail price, in Australian Dollars, to arrive at a CP Unit value for each competing model.
 * Class A : 0 to 3000 CP Units
 * Class B : 3001 - 4600 CP Units
 * Class C : 4601 - 9000 CP Units
 * Class D : 9001 - 18000 CP Units
 * Class E : Over 18000 CP Units

Results
The winner's race time for the 100 lap, 225 mile race was 3 hours 6 minutes 29.5 seconds.

From the 30 entries for the race, 28 cars started, with seven failing to finish.