Motor Trend gathered eight of Detroit’s newest performance cars for a single comparison test, and one entry completely upended what the rest of the segment was trying to be. Every other car in that lineup had spent years adding comfort and insulation on top of a potent engine. Plymouth’s Road Runner did the opposite, stripping everything back and betting that buyers wanted less. The magazine’s verdict is still quoted today, but the timing slips underneath the praise told a more complicated story. Read on for what the numbers actually said.