Non-400 bumper and TH350, gauges, body color underneath the hood, and rear spoiler might get some of the purists riled up. That's looking without my glasses on.
1968 400 Coupe, verdoro green, black vinyl top 1968 400 Convertible, verdoro green, black top 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver)