Your maths sucks . But also they missed some races in their early seasons.
There were only 62 races between 1981 and 1985 (15, 16, 15, 16), and they missed the first three of '81, and two in '82 (the US and Canadian).
That would make this their 501st, so I'm guessing there must be a random one in there they didn't make.
There were only 62 races between 1981 and 1985 (15, 16, 15, 16), and they missed the first three of '81, and two in '82 (the US and Canadian).
That would make this their 501st, so I'm guessing there must be a random one in there they didn't make.