"Super Chromes 1976 - 1977"@en . "were first released in 1976 and only ran for 3 years. So you can find them in both Redlines and Blackwalls. Including 6 cars that were only released in a 6-Pack. It Would appear that the Theme for 1976 Would be the celebration of the Bicentennial, Cars and Sets alike had lots of Red,White & Blue with stars & stripes theme's. File:6-pack SuperChromes.jpg"@en . . "were first released in 1976 and only ran for 3 years. So you can find them in both Redlines and Blackwalls. Including 6 cars that were only released in a 6-Pack. It Would appear that the Theme for 1976 Would be the celebration of the Bicentennial, Cars and Sets alike had lots of Red,White & Blue with stars & stripes theme's. File:6-pack SuperChromes.jpg"@en . .