After 1972 there were no great cars.
One could argue after 1971, when compressions were lowered for 1972.
Still lots of beautiful cars - the engines could be powered-up. Plenty of 1960’s cars to be found, too.
Even the 1980’s had some good-looking cars, though by then Camaro and Firebird.
I’d happily take a new condition 1973 Mach 1 today though I’d prefer a 1971 Boss 351 in the same condition.
They are still out there, but expensive.