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1930ish Auburn-Cord is like saying 1930ish Cadillac-Chevrolet. Two different makes. A '30 Auburn could not be mistaken for a '37 Cord. And Paxton goes back that far? How 'bout McCullough?
Dunno, last time I had a ride in one was 20 years ago. I know it was FWD and supercharged. And pretty. I think it would be more like saying a General Motors Cadillac, or Cadillac by General Motors, as both company names were tied in somehow, whereas Chevrolet was never a division of Cadillac or vice-versa.
Not much of historian, but Paxton & McCulloch are the same guy, same company, from pre-WWII days.
EDIT - A turbocharger by def is exhaust-powered (turbine powered supercharger == turbocharger). It's compressor design is not the same as centrifugal blowers because turbos have to spin a lot more R's. Not that I know much about turbocharging stuff.