The Riviera had gotten too big at this point, but this one is very eye-catching. 1975 BUICK RIVIERA 2D COUPE **CLASSIC**BEAUTIFUL** - cars & trucks -... (craigslist.org)
I'll answer my on questions 211.2 in (5,364 mm) (1966–67) 215.2 in (5,466 mm) (1968–1970) 217.4 in (5,522 mm) (1971) 218.3 in (5,545 mm) (1972) 223.4 in (5,674 mm) (1973) 226.4 in (5,751 mm) (1974) 223.0 in (5,664 mm) (1975)