The Rennmax name was applied to a series of open wheel racing cars and sports racing cars constructed by Rennmax Engineering in Sydney, Australia between 1962 and 1978. Rennmax Engineering was established by Bob Britton in 1961, its name derived from the German word "Renn", meaning race and the abbreviation "max", for maximum.
- 1 Models
- 2 References
Although Rennmax cars are often referred to by model designations such as BN2, BN3 etc., Britton claimed that the origins of these were unknown to him and in practice he did not even stamp chassis numbers on his creations. The following list utilises these unofficial model designations and also includes models which were built by Rennmax Engineering but raced under names other than Rennmax.
The Rennmax Vee was a Formula Vee racing car produced in series for Greg Cusack and Bruce Burr. Nine cars were built during 1965-66. The cars were originally referred to as CBs but each example was later renamed to "Rennmax".
The Mildren Maserati was a sports racing car built for Alec Mildren in 1965. It was constructed in the style of the Lotus 23, utilised various components from a Cooper T51 and was powered by a 2.9-litre Maserati Type 61 engine.
Lotus 23 replica
The Mildren, based on the Brabham BT23, was produced for Alec Mildren in 1968. Initially power by a 1.6 Alfa Romeo engine, it later used a Waggott powerplant. Racing as the Mildren Waggott, the car was used by Max Stewart to win the 1969 Australian Formula 2 Championship, the 1970 Australian Formula 2 Championship and the 1971 Australian Drivers' Championship.
Rennmax BN6 (Sports racing car)
A Rennmax sports racing car, powered by a 2-litre BMW engine, was built in 1970 for Doug Macarthur. A second chassis was built the following year for Ray Hanger who also commissioned another example in 1982. This model has been referred to as the Rennmax BN6  although this designation has also been applied to an Australian Formula 2 car of 1974. (see Rennmax BN6 (Formula 2) below)
Rennmax BN6 (Formula 2)
The Rennmax BN6 was a one off prototype of the BN7 Australian Formula 2 car of 1974. The BN6 designation has also been applied to the 1970-71 Rennmax sports racing car. (see Rennmax BN6 (Sports racing car) above).
Rennmax Vee (2nd series)
- Tony Davis, The Macquarie Dictionary of Motoring, 1986, pages 402-403
- Graham Howard, The Rennmax Story Retrieved from www.rennmax.com on 5 August 2010
- Rennmax BN1 on OldRacingCars.com Retrieved on 5 August 2010
- Rennmax on OldRacingCars.com Retrieved on 5 August 2010
- Rennmax BN2 on OldRacingCars.com Retrieved on 5 August 2010
- Rennmax BN3 on OldRacingCars.com Retrieved on 5 August 2010
- Historic Sandown race program, 6, 7 & 8 November, page 26 Retrieved on 5 August 2010
- Formula Vee: Rennmax Engineering, Australia Retrieved on 5 August 2010