01
Origins
The MR5 of 1971 carried Elfin into Formula 5000's brutal arena: Repco-Holden V8 power in Garrie Cooper's own monocoque design, contesting the Australian Drivers' Championship against internationally financed opposition. In the hands of drivers including John McCormack it delivered — Gold Star championship success and victories that proved an Adelaide workshop could engineer for 500 horsepower as convincingly as for club racing. The MR5's campaigns, extending to New Zealand's Tasman rounds, represent Australian motorsport's most self-sufficient era: car, engine and driver all domestic, beating imported Lolas and McLarens. Within Elfin's story the MR5 is the summit's approach — the machine that established Cooper among the world's genuine constructors, not merely assemblers, in single-seater racing's heavyweight division.
1971 Elfin MR5 · Graham-ruckert · CC BY 3.0
