The significant North American manufacturers from 1910-1940 were Auburn, Buick, Cadillac, Chrysler, Continental, Cord, Daniels, DeSoto, Duesenberg, Franklin, Imperial, LaFayette, LaSalle, Lincoln, Marmon, Packard, Peerless, Pierce Arrow, Ruxton, Stearns-Knight, and Stutz. The Great Depression put many luxury car manufacturers out of business; others would hold on before going defunct during the postwar era. From 1946 until the late 1990s, Cadillac was the top-selling brand of luxury cars in the U.S., while Lincoln was second. The most successful and long-running model names during this era were the Cadillac DeVille, Lincoln Continental, and the Chrysler Imperial. The Lincoln Mark Series and Cadillac Eldorado were positioned in the personal luxury category and competition between them continued into the 1990s. The personal luxury car emerged into mass popularity and affordability as an America-specific category of popularly-priced cars made from the 1950s by the four domestic manufacturers (GM, Ford, Chrysler, and AMC) that reached peak popularity in the 1970s. The cars were stylized, mass-produced two-door coupés or convertibles, relying on standard components. These distinctively styled cars were targeting the needs of individual customers, not an entire family. The longest running model lines were the 1958-1997 Ford Thunderbird, 1956-1998 Lincoln Mark Series, and the 1967-2002 Cadillac Eldorado. In 1990, American luxury brands dominated with Cadillac selling over a quarter-million cars and Lincoln had its best year ever at 231,660 units. However, the market was changing with an ever greater acceptance of smaller, more efficient imported luxury brands while at the same time, the domestic manufacturers were downsizing their models with product decisions that backfired on quality and brand respect. Since the late 1990s, Japanese and German brands have sold the most luxury-type cars in the United States. However, the Cadillac Escalade has led the luxury SUV segment sales in the United States since its introduction in 1998, with the highest sales for 15 out of its first 20 years on the market. In the 2000s, both Ford and General Motors produced luxury pickups: the 2002-2013 Cadillac Escalade EXT, 2002-2003 Lincoln Blackwood, and 2006-2014 Lincoln Mark LT. In the late 2000s, the Cadillac CTS and Cadillac DTS led to a resurgence in the brand's luxury sedans. The equivalent sedan from the Ford group, the 2008 Lincoln MKS, was also regarded as a significant improvement over previous models. In 2010, BMW was the best-selling luxury vehicle manufacturer by sales, with Audi and Mercedes-Benz the second and third highest