WASHINGTON, D.C. --- XM satellite radio announced that its XM NavTraffic service will be available as a factory-installed feature on the new 2009 Porsche Cayenne.

XM also recently announced that XM radio and XM NavTraffic will also be available as factory-installed features on all 2009 Porsche 911 models.

Powered by NAVTEQ, XM NavTraffic is a real-time traffic service that offers drivers the most current and detailed traffic and incident information. XM NavTraffic is available in 80 major North American markets.

"XM Satellite Radio and the optional XM NavTraffic is a feature that Porsche customers asked for to help them navigate through our country’s major cities," said David Pryor, vice president of marketing for Porsche Cars North America. "We are extremely pleased to offer this technology with the new Porsche Communication System 3.0 available on all 2009 Cayennes and standard on the Cayenne Turbo and Turbo S."

XM NavTraffic feeds data on incidents, such as accidents and road construction, directly to a vehicle's GPS navigation system via XM's satellite and ground network. The driver is alerted to these incidents through the navigation screen, allowing him or her to route around a jam before getting caught in traffic. Where available, XM NavTraffic provides real-time traffic information by using red, yellow and green color codes to indicate high, medium and low congestion levels.

All 2009 Porsche vehicles equipped with XM Radio and XM NavTraffic come with a three-month complimentary subscription.