Let me add this .....

LOTS of cars came into the Detroit area ... from Chicago, Cleveland, NY and even Dallas. LOTS of these cars were nothing more than "plated" race cars and they were MANY TIMES way faster than the cars then the cars that they planned on racing.

But THEN there was the "cruise" ... out to Woodward, then maybe out to Telegraph in stop-and-go traffic ... then out on 96/696 for a bit.

I even saw one "parade" almost to Lansing .....60 or so miles !

This "test" of whether the challenger's car was a TRUE street-car was almost as interesting as the race itself !