Chevrolet's 1964 Impala SS was a significant car but it earned its place in history more for what it ushered out, rather than any breakthroughs it ushered in. ... The '64 Impala was also a bookend for Chevrolet's X-frame-based chassis, a design that seemed to emphasize low-riding style over handling and safety.

Why is 64 Impala so popular?

So popular were the 1964 models that they began to command a premium in the used market by 1969; because many in the black community couldn't afford new Impalas in 1964 (and few white buyers preferred the 1964 model over the all-new 1965 Impala), the used market began to heat up.

Are 64 Impalas rare?

The '64 Impala SS cars, when equipped with the 409 engine like this one, are amongst the rarest and most desirable classic Impalas out there. ... It came along originally in the 1962 models to replace the 348 engine.