Bench-seat sleeper 1967 Chevrolet Impala SS "Fat Rat" Has a Big-Block Surprise

The 1967 Chevrolet Impala SS "Fat Rat" is a sleeper hit; modest on the outside, it hides a big-block surprise beneath the engine.

The car's powerful engine is referred to as a "Fat Rat" with affection,

a reference to its remarkable performance capabilities.

This specific model conceals the raw power that is available with a press of

the accelerator with its modest look and bench seat.  

It is a car that perfectly captures the essence of the muscle car era of the

1960s: a formidable beast ready to ambush unwary opponents.