[William]

Smokey Yunick built 3 #13 1966 Chevelles.

#1 was built up from a pre-production car, not even a pilot build. Not his finest build: "Car had power to spare but the chassis was so !@@$# up God couldn't have drove it." Mario Andretti drove it in the '66 Daytona 500, engine blew. Sold intact, may still exist.

#2 was the car basically designed & built by Chevrolet Engineering. Curtis Turner demolished it in practice at Atlanta. Was squashed into a cube and sat in his shop for many years.

#3 This one had all the tricks learned from the others. Nascar banned it outright, wouldn't even allow it on a track for tire testing. Yunick sold it, got it back in the '70s' restored it in the '80s. Still exists. He never raced it anywhere.

His book "Best Damn Garage in Town" is a must read for any Chevy guy.