Perhaps someone could explain to me the significance of this car? I'm a bit confused by it. The name on the door says Colin Bond, but it has the race number 7, with its class designation next to the number. Class designations were only displayed in Series Production until the end of 1972, and were dropped for Group C in 1973. Also, in Series Production, car numbers were based on the class they competed in, working upwards from Class D. So a Series Production Class C car wouldn't normally have such a low number. It'd usually be in the 20s, at least. However, the non-factory Mawer wheels suggest Group C, as these wouldn't be allowed in Series Production. Help! This is too confusing for my tiny brain.

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