6:20.7 is really scooting around the Ring Nordschleife. To give a sense here are the times for the 100 fastest production cars:
https://en.m.wikipedia.org/wiki/List...eife_lap_times
Top of the list is the Lamborghini Aventador SVJ at 6:44.97
Viper ACR 7:01.3
C7 Z06 Corvette 7:13.9
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