{{Use dmy dates|date=January 2021}} {{Use Australian English|date=December 2011}} thumb| 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.<ref name=Davis>Tony Davis, The Macquarie Dictionary of Motoring, 1986, pages 402-403</ref> Rennmax Engineering was established by Bob Britton in 1961, its name derived from the 1950s German NSU motorcycles Max and Rennmax, with "Renn" meaning race.<ref name=Davis/> The 1953 and 1954 250cc World Championships were won by Werner Haas riding a NSU Rennmax.
==Models== [[File:Rennmax BN6 of Jim Foulis.jpg|thumb|right|1971 Rennmax BN6 sports racing car]] 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.<ref name=Howard>[http://www.rennmax.com/Rennmax-Article-2pages.pdf Graham Howard, The Rennmax Story] Retrieved from www.rennmax.com on 5 August 2010</ref> 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. {{Clear}}
===Rennmax Climax=== The first Rennmax chassis, built for Noel Hall in 1962, utilised numerous components from Hall's Cooper, including a 2.2-litre Coventry Climax engine.<ref name=Howard/>
===Rennmax BN1=== thumb|Rennmax BN1 The Rennmax BN1 was a single seater racing car incorporating concepts from the Lotus 20 & Lotus 22 designs.<ref name=ORCBN1>[http://www.oldracingcars.com/rennmax/bn1/ Rennmax BN1 on OldRacingCars.com] Retrieved 5 August 2010</ref> At least 6 examples were built circa 1962–1964.<ref name=ORCBN1/>
===Rennmax Vee=== The Rennmax Vee was a Formula Vee racing car produced in series for Greg Cusack and Bruce Burr.<ref name=ORC>[http://www.oldracingcars.com/rennmax/ Rennmax on OldRacingCars.com] Retrieved 5 August 2010</ref> Nine cars were built during 1965–66.<ref name=Davis/> The cars were originally referred to as CBs but each example was later renamed to "Rennmax".<ref name=Howard/>
===Mildren Maserati=== The Mildren Maserati was a sports racing car built for Alec Mildren in 1965.<ref name=ORC/> 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.<ref name=ORC/>
===Lotus 23 replica=== [[File:Rennmax 23B of Tony Burrage.jpg|thumb|Rennmax 23B, a replica of the Lotus 23B]] A series of replica Lotus 23 sports racing cars were constructed<ref name=ORC/> in the mid 1960s.<ref name=Howard/>
===Matich SR3=== The Matich SR3 sports racing cars were constructed by Rennmax Engineering for Frank Matich.<ref name=Howard/> Bob Britton then accompanied Matich to the United States when he competed in the 1967 Can-Am season.<ref name=Howard/>
===Rennmax BN2=== The Rennmax BN2 was a one-off single seater model, based on the Brabham BT14 and built for Max Stewart in February 1968.<ref name=ORCBN2>[http://www.oldracingcars.com/rennmax/bn2/ Rennmax BN2 on OldRacingCars.com] Retrieved 5 August 2010</ref> It used a 1.5-litre Ford twin cam engine.<ref name=ORCBN2/> {{Clear}}
===Mildren (Waggott)=== [[File:Max Stewart Waggott TC4V 4 Graham Ruckert.jpg|thumb|Max Stewart won the 1971 Australian Drivers' Championship at the wheel of the Mildren Waggott]] The Mildren, based on the Brabham BT23, was produced for Alec Mildren in 1968.<ref name=BN3>[http://www.oldracingcars.com/rennmax/bn3/ Rennmax BN3 on OldRacingCars.com] Retrieved 5 August 2010</ref> Initially power by a 1.6 Alfa Romeo engine, it later used a Waggott powerplant.<ref name=BN3/> 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. {{Clear}} ===Rennmax BN3=== thumb|Rennmax BN3 The Rennmax BN3 was an open wheeler design derived from the Brabham BT23-based Mildren.<ref name=BN3/> Five examples were built between 1968 and 1971.<ref name=BN3/> {{Clear}}
===Rennmax BN6 (Sports racing car)=== thumb|Rennmax BN6 A Rennmax sports racing car, powered by a 2-litre BMW engine, was built in 1970 for Doug Macarthur.<ref name=Howard/> A second chassis was built the following year for Ray Hanger who also commissioned another example in 1982.<ref name=Howard/> This model has been referred to as the Rennmax BN6<ref>[http://issuu.com/terragrafix/docs/sandown_race_programme_2009 Historic Sandown race program, 6, 7 & 8 November, page 26] Retrieved 5 August 2010</ref> although this designation has also been applied to an Australian Formula 2 car of 1974. (see Rennmax BN6 (Formula 2) below)
===Rennmax Repco=== The Rennmax Repco was a one off sports racing car built in 1972 for Lionel Ayers and powered by a 5-litre Repco V8 engine.<ref name=ORC/>
===Rennmax BN6 (Formula 2)=== The Rennmax BN6 was a one off prototype of the BN7 Australian Formula 2 car of 1974.<ref name=ORC/> The BN6 designation has also been applied to the 1970-71 Rennmax sports racing car. (see Rennmax BN6 (Sports racing car) above).
===Rennmax BN7=== The Rennmax BN7 was an Australian Formula 2 car of 1974, four of which were built.<ref name=Davis/>
===Rennmax Vee (2nd series)=== A second Formula Vee design was released in 1975.<ref name=Davis/> Fourteen examples were built.<ref>[http://www.rennmax.com/Formula%20Vee.htm Formula Vee: Rennmax Engineering, Australia] Retrieved 5 August 2010</ref>
==References== <references/>
Category:Australian racecar constructors