The Grande was unchanged, save for colors and vinyl roof treatments. Noticeably absent from the option list were the 15×7″ chrome Magnum 500 wheels. The last of the Mustang Grande models was much like the Grande cars from 1969 onward in that it was the “luxurious” Mustang.
The 1973 Mustang Grande option was only for the hardtop and consisted of a vinyl roof, plush interior with deluxe cloth high bucket seats, electric clock, interior trim panels with molded pull handles and arm rests, deluxe two-spoke steering wheel, color-keyed racing mirrors, full wheel covers, metal rocker panel moldings, metal wheel lip trim, and dual exterior paint stripes.
It was still considered the “fancy hardtop” Mustang and was not really changed for 1973. This was the last year that the luxury options package was called Grande, in 1974 it was renamed the Ghia after a redesign of the options by the newly Ford acquired Ghia Italian design firm.