Porsche Cars North America, importer and distributor of Porsche sports cars in the United States, Tuesday, June 6th 2000, announced sales and stock figures for the month of May, 2000. Retail sales for the month totaled 2166 cars, a decrease of 9 percent over May 1999. Year-to-date sales, however, are up by 3 percent over 1999. The slight decrease reflects an attempt to stabilize vehicle inventory to meet anticipated demand in future months. Demand continues to be strong for all models.