Mainly English, with a couple of Anglo-Americans, Italians and a German for good measure.
Interesting lots of Yellow cars, Belgium's International racing colour
as always a " A-Healey " in there, just a little one.

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Europeans - unsure what the yellow car is possibility Italian
Name:  PIR 1988 #3 Lancia, special and Jaguar XK CCI05012016_0001 (800x540).jpg
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Cobra's versus the Europeans.. Ferrari
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another Cobra versus a Porsche .. close running
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still close
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Next ; American Iron and a mix of Sports Saloon and Grand Prix.

Thanks Ken H, they didn't seem to fit in my Laguna Seca thread, and from a later trip to the USA.