My bad, the Daytona Coupe I was thinking of was the 1964-65 Cobra Daytona Coupe, powered by a huge 427 CI Ford motor.
They were designed strictly for road racing and excelled at LeMans. There may have been only 8 or 9 built. Thre have been several mutations of the Dodge Daytona...a Charger based supercar in the late 60's and early '70's
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Then a late 80's econo-performance car:
And the new Charger based Daytona: