We sampled three versions of the 2008 Porsche Cayenne, including a V6 with the standard six-speed manual transmission, a V8-powered S model, and the muscular Turbo – each equipped with the new PDCC system. Our testing was conducted on high-speed four-lane highways, narrow two-lane country roads, harrowing lane-point-five mountain routes, and two-track cross-country trails blanketing the Andalusian region of southern Spain near Cadiz and Jerez. If you haven't been, imagine central California from the ocean to Interstate 5 but with historic pueblos blancos, or “white towns,” dotting the local hilltops.