8th-Jan-21, 11:54 AM
Yes, that's a wheel... carrying a spare wheel was is the regs for the pre-1966 FIA Group 4 'sports car' class - the forerunner of Can-Am. The spares were tucked away wherever they would fit - as they weren't likely to be used. Probably decent ballast though...
This well-known picture (from Dave Friedman's book 'McLaren - Sports Racing Cars') is of the McLaren M1A being tested by Bruce McLaren at Goodwood in the summer of 1964. It wasn't run with the body until September, when McLaren beat his own sport cars lap record by 3 seconds and went faster than Graham Hill's outright lap record in an F1 BRM. However, the M1A and the customer McLaren-Elva Mk1s didn't have the success on the track of McLaren's ex-Penske Cooper-Oldsmobile 'Zerex Special' - or the subsequent McLaren sports cars that went on to completely dominate Can-Am.
This well-known picture (from Dave Friedman's book 'McLaren - Sports Racing Cars') is of the McLaren M1A being tested by Bruce McLaren at Goodwood in the summer of 1964. It wasn't run with the body until September, when McLaren beat his own sport cars lap record by 3 seconds and went faster than Graham Hill's outright lap record in an F1 BRM. However, the M1A and the customer McLaren-Elva Mk1s didn't have the success on the track of McLaren's ex-Penske Cooper-Oldsmobile 'Zerex Special' - or the subsequent McLaren sports cars that went on to completely dominate Can-Am.
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