XM NavTraffic Real-Time Traffic Service to Be Available on All 2009 Porsche Cayenne Models

WASHINGTON, June 19 /PRNewswire-FirstCall/ -- XM (NASDAQ: XMSR), the nation's leading provider of satellite radio, today announced that its award-winning XM NavTraffic service will be available as a factory-installed feature on the new 2009 Porsche Cayenne. XM radio's more than 170 channels of coast-to-coast entertainment has been available as a factory-installed feature for Cayenne models since 2005.

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 the nation's leading real-time traffic service, ensuing that drivers have the most current and most detailed traffic and incident information at their fingertips, whether they're commuting or traveling. XM NavTraffic is available in 80 major North American markets.

"Porsche is a brand known for its exceptional performance and technology," said Joe Verbrugge, senior vice president, automotive partnerships and international operations, XM Satellite Radio. "XM is pleased to expand our powerful, award-winning XM NavTraffic technology to all new 2009 Porsche Cayenne models."

"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. 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,” said David Pryor, vice-president of marketing, Porsche Cars North America.

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.

For more information on XM NavTraffic, visit: http://www.xmradio.com/navtraffic.

About XM

XM is America's number one satellite radio company with more than 9.3 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, Chicago, Nashville, Toronto and Montreal, XM's 2008 lineup includes more than 170 digital channels of choice from coast to coast: commercial-free music, premier sports, news, talk radio, comedy, children's and entertainment programming; and the most advanced traffic and weather information.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Hyundai, Nissan, Porsche, Ferrari, Subaru, Suzuki and Toyota is available in 140 different vehicle models for 2008. XM's industry-leading products are available at consumer electronics retailers nationwide. XM programming is also available through XM Radio Online, the exclusive home on the Internet for XM's commercial-free music channels; as downloads of original XM shows via podcasts from XM's Web site or the Apple's iTunes Store; and as streams of commercial- free XM music channels to AT&T and Alltel wireless customers through XM Radio Mobile. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com/.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio's service, the Company's dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.'s Form 10-K filed with the Securities and Exchange Commission on 2-28-08. Copies of the filing are available upon request from XM Radio's Investor Relations Department. All programming subject to change.

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CONTACT: Marie Farrar of XM Satellite Radio, +1-202-380-4151,

Web site: http://www.xmradio.com/