[Westheim]

Originally Posted by Syd Thrift

also there was a "track", if you can call it that, in Berlin that was basically just several miles of a straightaway with a heavily banked 180 degree turn at each end (I think one of the grandstands for that still exists and of course the road itself is still very much in use).

But hey, this does have some of that feel to it, especially with the danger of bikes. I was a little surprised to see the guy with the camera on him going quickly enough that he actually passed a rider in front of him...

That was the AVUS, built as a trial road after WW1. It's part of an autobahn today (sans banked corners). It held a few German GPs, the last in 1959, when Jean Behra had an accident in one of the banked turns, which did not have any sort of wall or fence on the top, and was flung head-first into a flagpost. Formula 1 went back to the much safer (uhm) Nurburgring after that, but the AVUS was actually used for racing (in a shortened version) well into the 90s (not without more fatal accidents, though).

About Spa and Masta especially, there's this story:

Another particularly gruesome story comes from the 1972 24-hour touring car race.[9] During one of his pit stops at night, Hans-Joachim Stuck shouted to his co-driver Jochen Mass over the noise from the cars that he should "look out for body parts at the Masta Kink". Mass arrived there expecting to see pieces from cars all over the road but was appalled to discover it was in fact the remains of a marshal.[10]

https://en.wikipedia.org/wiki/Circui...-Francorchamps

Now, I actually doubt that this story is true. Stuck and Mass are both German, and "body parts" would only relate to human remains in German, not car parts.