I found this one also:
This was a concept car built in the '60s on a Dodge Charger platform. It featured side exhaust pipes, integrated roll bar and no rear seats.
I no longer have the magazine from which I scanned the picture from so I don't have any other info on the car.
Per another source I have received the following information:
This car was made at the end of 1969 on a Dodge Challenger base. This car was made from a 1970 Barracuda convertible, Challenger panels where put on the body and customized. It was originally white but was damaged while shipping for its first premier. It was then painted this yellow color...a week before the detroit car show. It toured around the US....Then it was sent and customized again..That's the way it still is today.
Just thought it was interesting.