Making the Marlin larger was a design requirement in anticipation of the 1968 entry of the compact-platform based Javelin. Also the longer, wider car would improve product differentiation among AMC's various model lines. "Motor Trend" magazine compared two "Sporty Specialties" – the 1967 AMC Marlin and Dodge Charger – concluded that both are "caught in the middle" because "neither has the compactness of the basic sports-personal archetypes such as the Mustang or Camaro, nor the posh elegance to social climb" of models such as the Cadillac Eldorado or Buick Riviera. Rather, "both aim at the driver who wants a sporty-type car, but who doesn’t want to give up room and comfort and isn’t ready to move into more expensive category." The 1967 Marlin was part of the "cool" car sales pie that featured sporty cars with "the popular fastback silhouette".