Is that T-Bird classed as a subcompact?
Compared with the '76 model this one is small. I'd say the T-Bird lost at least a foot in length and close to 1,000 pounds from '76 to '77. I think after Ford downsized the T-Bird in '77 they changed it from a full size classification to an intermediate. Ford started reducing the size of some of their large vehicles in '77, GM followed in '78 and I think Chrysler started in '79. Full size cars today aren't as big as intermediates were in the '70's. I had a '77 Buick Regal, it was about 17.5' long. I also owned a '76 Lincoln Mark IV and '75 Ford LTD they were about 19' long.