While its SUV sibling, the Porsche Cayenne, has offered satellite radio since 2005, the Porsche 911 has gone without. So in addition to direct-injection and a new seven-speed dual-clutch transmission, the 2009 Porsche 911 will also get the availability of XM Satellite Radio straight from the factory. In addition to 170 channels of music, sports, news, talk and entertainment, the satellite radio service will include XM NavTraffic, as well. The digital traffic service offers drivers up-to-date traffic and incident information. All customers who take delivery of a 2009 Porsche equipped with XM Radio and XM NavTraffic will enjoy a three-month complimentary subscription, but they'll probably enjoy the fact that they're driving a Porsche 911 even more.