1973 marked a turning point in the history of the automobile. Increasing restrictions on tailpipe emissions had already begun to impact horsepower ratings, and new crash protection safety standards led to increases in the size and weight of vehicles. Then, in October of '73, the OPEC oil embargo would cause fuel prices to skyrocket. Despite these challenges facing the muscle car segment, fun and exciting cars could still be found if you knew where to look.

Every project vehicle has a beginning and, as the saying goes, Rome wasn't built in a day. Although we see plenty of complete builds with every last nut and bolt replaced, we also see quite a few in-progress builds, and we find these equally interesting. A partially-completed project tells a story about the journey it has been on as well as the intended destination.

1955 was an important year for Chevrolet. It marked the first year of the iconic model that would eventually become known by fans as the Tri Five. The top-trim version of this Chevy model was the Bel Air, which could be ordered as either a standard two-door "post" version with a B-pillar at the midpoint of the roof, or a pillarless "hardtop" version. The '55 Bel Air also featured extra chrome trim and a selection of more than a dozen eye-catching two-tone color combinations.

In December 1960, Chevrolet announced the introduction of the Impala Super Sport for the 1961 model year. With this new trim level came a potent new 409-cubic-inch V8 engine that would catapult the Impala into a new era of high performance.