1970 Plymouth Superbird Art Print The 1970 Plymouth Superbird was arguably the most over-the-top muscle car of the 1960s and 1970s. The big rear wing and wedge nose were designed to create an advantage for Plymouth NASCAR racers. Dodge started the  Wing Machines  the year before with the 1969 Charger Daytona. On the race track the combo worked great, giving some extra top speed for racers such as Richard Petty. For the street, it was just a wild-looking combo. Today, Plymouth Roadrunner Superbirds are very valuable. This 11" x 17" full-color art print is made on white card stock and shrink wrapped on cardboard. Signed and numbered by the artist in a series of 500. As seen in Guide To Muscle Cars Magazine. Sent via USPS Priority Mail with delivery confirmation for easy tracking and speedy delivery.