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Gethin thru the Laguna Seca chicane, M8D October 1970 DNF with failed battery. Difference in height between tall Dan Gurney, who used this chassis prior to Gethin apparent from the roll bar extension installed for Dan but redundant for Peter!  (The Enthusiast Network)

Check out Dans set in the cockpit to illustrate the point made in the previous photo! Here Dan in chassis #M8D/3 at the season opening Mosport, Canada round, 12 days after Bruce’ Goodwood death. Tyler Alexander, Team manager/Crew Chief at right. Gurney put the car on pole and won the race, a fitting tribute to McLaren and demonstrating the crews determination and resilience (Bob Harmeyer)

Chassis of riveted and bonded aluminium with fabricated steel bulkheads. Engine a stressed part of the chassis, also supported by tubular steel ‘A frames’ . Brakes Lockheed.(Profile Publications)

Suspension: single top link, inverted lower wishbone, twin radius rods and coil spring/shock unit. Gearbox: Hewland LG600. Engines prepared in-house, Chev ZL1 Aluminium block, mainly 7.6 litres or 465CID. 670 BHP @ 6000 RPM. Hulme used 430 CID engine when some overheating was experienced . Full monocoque but ‘rear sponsons’ non load-bearing the engine bolted directly to a magnesium plate at the rear bulkhead, also supported by a steel, tubular ‘A-frames’. (Autosport)

Wheelbase 239cm, track F/R 157/147cm, overall length 391cm, height to roll bar 91cm. Car christened ‘The Batmobile’ as a consequence of beautifully integrated rear wing, the high wing of the ’69 M8B outlawed along with all high wings by the FIA in all classes.(Profile Publications)

Shot of Dan Gurney with dave Friedman early in 1970 showing the cars essential elements ‘laid bare’. (Pinterest)

Peter Gethin was the son of a jockey, his compact dimensions a contrast to Tim Parnells’ whose father Reg was a farmer! Peter explains the handling of his BRM to team boss Tim at the 1972 British GP (Pinterest unattributed)