Nineteen seventy-two was the final year of GM’s classic A-body that had been produced since 1968. At Barrett-Jackson’s 2023 Scottsdale auction at Westworld, we found these Oldsmobile 4-4-2 and 1972 Buick GS convertibles in the same color and thought it would be neat to show how they evolved, if not to demonstrate how they compare since they both have their respective top engines: W30 and Stage 1. Keep tabs on all of your valuable assets from the palm of your hand. Visit LandAirSea.com to get you