A handful of Detroit’s fastest muscle cars never faced an official ban. A rulebook change, a dealer-only sale, or an insurance surcharge did the job instead — and decades later, that same paper trail is part of why they’re worth more than ever.
Only 503 Dodge Daytonas and 1,935 Plymouth Superbirds were ever built, and both were sold with a regular factory warranty. Here’s how a wind-tunnel-shaped street car broke NASCAR’s 200-mph barrier — and why the sport changed its own rulebook to make sure it never happened again.
