No matter how much success the new Ramblers achieved in the marketplace, Roy Abernethy was not completely satisfied. Using the experience he gained as an outstanding salesman as a guide, Abernethy closely looked at the direction that American Motors' competition was going and decided that the company would be much more successful if its products competed more directly with the Big Three. He would achieve this by pushing all AMC vehicles further upmarket among the various market segments, shaking off the company's economy car image, and offering vehicles once again in all three major American car size classes: compact, intermediate, and full-size. The American and Classic were strong competitors in the former two segments, so for the 1965 model year, he set his sights on turning the Ambassador into a proper full-size car by stretching the Classic's wheelbase and giving it different styling. The general sizes of automobiles at that time were based on wheelbase length standards that were set by the industry, rather than the modern vehicle classification by interior and cargo space. The 1965 Ambassador represented a fundamental shift in corporate ideology, a shift away from primarily fuel-efficient vehicles, to bigger, faster, and potentially more profitable cars.