by chappyman66 » Tue Sep 23, 2014 7:47 am
In the olden days, racing was gran prix (single seaters) and sports cars (two seaters, from the 50s forward). In the early 60s organizing/sanctioning bodies were trying to preserve the "fiction" of arrive and drive sports cars with the influx of purpose built racing cars. So sports cars had to have certain characteristic such as two seats. Of course, the ACO for LeMans had the spare tire and infamous "luggage compartment" requirements.
Remember Penske/McLaren and the Zerex Special? That was a grand prix car (single seater) with fenders (a new body) and a "partial" second seat. So the spare tire on the M1A was mounted up front because that's the space that was available when McLaren built the car in order to meet the rules of the time. It's unique, that's for sure.