With every new Boxster convertible, Porsche reminds us how lucky we are to be warm-blooded, warm-weather mammals. At the 2008 L.A. auto show, the debut of a bright-red second-generation, 2009 Porsche Boxster was like getting the gift of summer in November. As the poet once said -- well, some poet must have said -- the only thing better than driving a Porsche on a warm summer day is driving a convertible Porsche and a warm summer day.