The Cadillac Lyriq and GMC Yukon serve fundamentally different purposes, with the Lyriq as a midsize luxury EV crossover and the Yukon as a full-size body-on-frame hauler. The Lyriq leads in efficiency and tech features per Car and Driver testing while the Yukon excels in passenger capacity and towing per MotorTrend. This is not a close call for direct comparison.