Intended as the successor for the Comet, the Monarch led to a completely new market segment: the luxury compact car. The model line was met with success, with examples used as personal cars among Ford executives (including Henry Ford II). Following the 1974 discontinuation of its engine, Lincoln-Mercury ended its sales of the DeTomaso Pantera.  1976 saw the expansion of the smallest end of the Mercury model line. Introduced in Canada in 1975, the Bobcat was the Mercury counterpart of the Ford Pinto, sharing its coupe, hatchback, and station wagon bodystyles. The Capri was restyled with a hatchback and was renamed the Capri II. The Capri II (devoid of any divisional branding) became the second most-imported car in the United States (behind the Volkswagen Beetle). For 1977, Mercury made significant revisions to improve sales to its intermediate model range (its slowest-selling models). While technically a mid-cycle model update, the Montego was replaced by the Cougar, with the latter offering sedan and station wagon bodystyles for the first time. The Cougar base coupe, sedan, and wagon were counterparts of the Ford LTD II, with the Cougar XR-7 hardtop becoming a counterpart of the Ford Thunderbird. The revision was well-received, as Cougar sales nearly tripled. In contrast to the downsized model ranges introduced by General Motors, the long Marquis/Grand Marquis was powered by a V8 (the second-largest displacement engine used in an American automobile).  1978 commenced the modernization of the Mercury model range, marked by the introduction of the Zephyr compact, replacing the Comet. The counterpart of the Ford Fairmont, the Zephyr marked the introduction of the Fox platform, a rear-wheel drive chassis architecture that underpinned a number of compact and mid-size Ford and Lincoln-Mercury vehicles from the 1970s into the early 2000s. After ending importation of the Capri II in late 1977, leftover examples were sold through the 1978 model year. Of the 580,000 vehicles sold; nearly four out of every ten 1978 Mercurys were Cougars. For 1979, Mercury continued its modernization; as the division shifted away from performance vehicles at the beginning of the decade, the fuel crises of 1973 and 1979 sparked the decline of the landyacht. Two years after General Motors downsized its full-size model lines, Mercury introduced a downsized Marquis; while nearly matching the Cougar sedan in exterior footprint, the 1979 Marquis gained interior space over its 1978 predecessor.