What years of C3 Corvettes have different styles of Door Panels and why? 1968 is a one year only door panel with only one version. 1969 was also a one year only door panel and had 2 versions, one for Standard Vinyl Interior and one for Corvettes ordered with optional Leather Interiors. 1970-1976 Standard Vinyl Interior Door Panels are all the same. 1970-1975 Custom (Deluxe) Interior Door Panels and came with Corvette with Leather Seat Covers. 1976 Custom (Deluxe) Interior Trim Door Panels and came with Corvette with Leather Seat Covers. 1977 Custom (Deluxe) Interior Trim Door Panels were all the same. What is the difference of the Standard Interior and Custom (Deluxe) Interior Trim? 1968 Corvettes came equipped with standard Vinyl Seat Covers or optional Leather Seat covers and all door panels were the same. 1969 Standard Vinyl Interior Corvettes had Door Panels with the upper area of the door panel consisting of a Comfortweave pattern dielectrically embossed / molded into the door panels. 1969 Corvettes with the Leather Interior Option had Door Panels with a separate special Insert of Comfortweave Material attached to the door panels. 1970-1976 Standard Interior trim was vinyl seat covers and door panels without the upper trim bezel or lower door panel covered with carpet and chrome trim. 1970-1976 Custom (Deluxe) Interior Trim option consisted of leather Seat Covers, Cut Pile (Plush) Carpeting and special door panels with a wood trim insert on the upper 1/3 of the panel and carpeting on the bottom of the door panel. The shifter console also had matching wood trim. Strangely there was no RPO option number for Custom (Deluxe) Interior Trim. 1977 Corvettes were equipped with the “Custom (Deluxe) Interior Trim” package as standard equipment. What is the difference between 1970-1977 Corvettes with Custom (Deluxe) Interior Trim Door Panels? 1970-1975 Custom (Deluxe) Interior Trim Door Panels consisted of a normal door panel plus an upper chrome bezel insert with walnut trim and a lower chrome trim accenting the Plush Cut Pile carpet at the bottom of the door panel. 1976 Custom (Deluxe) Interior Door Panels consisted of a normal door panel plus an upper chrome bezel insert with teak trim and a lower chrome trim accenting the Plush Cut Pile carpet at the bottom of the door panel. 1977 Custom (Deluxe) Interior Door Panels. All 1977 Corvettes had the upgraded Custom (Deluxe) Interior option as standard equipment. Is it possible to convert a Standard 1970-1977 Door Panels into Custom (Deluxe) Interior Trim Door Panels? In a simple response - YES. Each separate component piece is available as a Corvette Reproduction Part and every door panel has the same backing and allows for the addition of trim parts. Your old or used hardware can also be transferred to a NEW door panel. How many Corvettes were equipped with the Optional Custom (Deluxe) Interior Trim option? 1970 3,191 1971 2,602 1972 8,709 1973 13,434 1974 19,959 1975 Unknown 1976 36,762 1977 All I see 1968-1977 Standard Door Panels listed as both Basic and Standard. Why? Door Panels as: Standard – for vinyl interior cars Deluxe for leathers interior cars Most Standard Door Panels can be ordered with trim and without trim.