Something that struck me as a coincidence a while back is how the A1 GP World Cup of Nations started almost exactly 100 years after the last Gordon Bennett trophy. As far as I know the Gordon Bennett Cup was the last high profile racing series that was a contest between Nations, until A1 GP came along last year. If that is the case then no country has been declared motorsport World champions since 1905.
Léon Théry for France won the final Gordon Bennett Trophy in 1905 and now France have won the A1 GP World Cup of Nations 2005/2006. Can anyone think of any other event or series during those 100 years that would be regarded as a Motorsport World Cup or Cup of Nations, or can France rightly claim to be in their 101st consecutive year as World Champions?