Marspeed lines up the Dodge Charger Hellcat, Dodge Challenger Hellcat, Chevrolet Camaro ZL1, and Ford Mustang Shelby GT350R against each other and a handful of other rivals, comparing four completely different takes on the same basic idea: how to build the ultimate modern muscle car. From the Hellcats’ brute supercharged torque to the GT350R’s naturally aspirated, road-course-tuned approach, each car represents a different bet on what buyers actually want. It’s a snapshot of 2017’s horsepower arms race at its peak. Watch to see which philosophy comes out on top.