Three German roadsters, the BMW Z3, the Porsche Boxster and the Mercedes-Benz SLK, are accomplishing their mission: Bringing new customers to their brands.
The Boxster was the most successful conquester; 92.4 percent of its buyers and lessors owned no Porsche products.
The data, from the first quarter of 1999, was compiled for Automotive News by Polk, based in Detroit.
The Jeep Grand Cherokee was the favorite other vehicle of the buyers and lessors new to the brands of their German roadsters.
Karen Piurkowski, director of loyalty at Polk, said the findings are a good omen for upcoming roadsters, including the Honda S2000, due in Septem-ber, and the Cadillac Evoq, due in 2003.
Here are U.S. sales of the three through the first five months of 1999: