The 20 Most Brutal Muscle Cars of the 1970s

4. 1970 Buick GSX Stage 1

The 1970 Buick GSX Stage 1 was a true sleeper, blending luxury and brute force in one striking package. Its 455-cubic-inch V8 delivered an incredible 510 lb-ft of torque—more than many rivals of the time. Despite Buick’s reputation for comfort, the GSX Stage 1 stunned competitors with its lightning-quick acceleration and street credibility. With bold graphics and advanced features, it proved that muscle cars could offer both plush interiors and world-class performance. This combination made it a favorite among savvy enthusiasts.