6: 1975 Chevrolet Laguna
Not quite a Chevelle and not quite a Monte Carlo, the Chevrolet Laguna was a weird mixture. The design was pioneering in some aspects, and it fell short in others. One unique aspect of the Laguna was the 7.4-liter big-block V-8. That was one of the last big block motors that made its way into a muscle car (via Motor Week).
Chevrolet is a brand synonymous with muscle cars, but the 1975 Chevrolet Laguna stands out. With the right bit of work, you can turn this into a capable muscle car with a lot of appeal. The GM big block motor is one of the most common motors on the market. There are many upgrades you can do to this engine.