The '67 trim tags will tell most of the options that came on your vehicle, there is a trim tag analyzer on this site that can help with that. Other year first gens will require investing in the PHS documents for the car.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto