In 1985, Chrysler entered an agreement with American Motors Corporation (AMC) to produce Chrysler M platform rear-wheel drive cars, as well as Omnis and Horizons, in AMC's Kenosha, Wisconsin plant, because AMC could produce the cars for less money. The 2.2 L Chrysler inline-four cylinder was the only available engine from 1987 onwards. By this point, the L-bodies were consolidated into a single-trim "America" line in the interest of improved quality control and reduced costs. Despite the P-body Dodge Shadow and Plymouth Sundance effectively superseding the Omni/Horizon in 1987, the cars were kept in production for another three years since their tooling had been amortized and each one sold turned a profit.