One of the original purposes of the Nordschleife was as a test track for auto manufacturers, and its demanding layout had been traditionally used as a proving ground.
The only production street legal Mazda that I can find that registers a lap time is the Mazda Speed3 at over 8:30 (near the bottom of the list). No MX5 ‘sporty’ car on there. Again, production car....
https://en.wikipedia.org/wiki/List_o...eife_lap_times