In them ol'days, not one single american car was well thought out in terms of chassis, brakes nor suspension.
It wasn't by chance that US racing was ni a straight line or around in circles for ... how many years? before you guys realized cars can turn right, too.
I still have a pretty old Corgi paperback, called "sports cars of the world", according to the author, racing driver Paul Frere, even a 1966 1600cc 126bhp Alfa Romeo sedan could run circles around a 1966 muscle car, provided there were no straights longer than the 1/8th mile.

Alfa Romeo, monocoque body, DOHC aluminium engine, independent rear suspension (DeDion) with coil springs, 5 speed gearbox and 4 wheel disc brakes, radial tires.
Muscle car, body on ladder frame, OHV iron engine, live rear axle with leaf springs, 3-speed gearbox, drum brakes (front discs opional), cross-ply tires.
(I personally remember front disc brakes and radial tires becoming an option only around 1969 and offered as standard on some "sports packs" in 1971-73)
Of course, we can leave out the puny Alfa and look ad Italian muscle cars of the era, but it would be a no-contest.
Or, we could look at luxury sedans of the day, and compare a Citroen DS with a Buick of the same year.

Just to say, "animals" from different continents will evolve in different ways.