Typically those are Roush vehicles out of Auburn Hills running durability under contract for the big three (especially if there were two of them traveling together, and usually a Chrysler product). They pass in front of my house several times a day.
If it was just one by itself it was probably a powertrain calibrator out riding around.
K
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'63 LeMans Convertible
'63 Grand Prix
'65 GTO - original, unrestored, Dad was original owner, 5000 mile Royal Pontiac factory racer
'74 Chevelle - original owner, 9.56 @ 139 mph best
Last edited by Keith Seymore; 10-06-2020 at 12:27 PM.
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