BMW 550i finished a flying lap of Autozeitung test track in 1 minute and 45.2 seconds.
added data for Mazda RX-7
8:05 on the full lap back in 1987 is insanely impressive.
https://www.racedepartment.com/threads/which-is-faster-than-what-ordering-different-racing-series.111899/page-2 The 1995 GTR had about a 0.65 CDa (CDa=coefficient of drag..)
added Opel Astra Sports Tourer GSe
With more power and a 10mm-lower ride height and a stiffer overall suspension setup ...
added Opel Astra GSe
It would be good to find aero data for the LM/GTR, ...
Yes I always known that, I also know the the system ...