XM Satellite Radio Teams With IndyCar Superstar Danica Patrick

WASHINGTON, D.C., September 12, 2006 -- XM Satellite Radio, the nation’s leading satellite radio company with more than seven million subscribers, has signed a multi-year deal with Andretti Green Racing (AGR) to be a major associate sponsor of the race car driven by IndyCar Series superstar Danica Patrick.

Patrick is one of the best-known and most popular figures in professional sports today. Winner of the Rookie of The Year trophy at her first Indianapolis 500 in 2005, Patrick has become an international sensation, appearing on magazine covers from Sports Illustrated to TV Guide.

2007 will mark Patrick’s first year as a member of the Andretti Green team, which is owned by Michael Andretti, Kim Green and Kevin Savoree, and is the winningest team in Indy Racing League (IRL) history. The major sponsor of Patrick’s AGR vehicle is Motorola, which joined with XM and other team sponsors today in Chicago for the grand unveiling of Patrick’s new race car.

As the official satellite radio network of the IRL, XM broadcasts every IndyCar Series race live and nationwide. Under the agreement with AGR, the XM logo will appear on Patrick’s race car and fire suit, and XM has marketing rights for Patrick’s image and likeness.

XM will announce further plans with AGR in the coming weeks.

“XM is the home for racing’s biggest stars, and Danica Patrick is a fantastic competitor who has become one of the biggest stars in all of sports,” said Howard Jacobs, senior vice president, strategic partnership marketing, XM Satellite Radio. “We’ve been partners with Andretti Green Racing for three IRL seasons, and we were thrilled when Danica joined the AGR team. Like XM Radio, Danica is an innovator and a groundbreaker. She’s an ideal person to represent XM and our commitment to bringing auto racing to millions of people nationwide.”

XM has exclusive, weekly radio shows hosted by NASCAR champions Dale Earnhardt, Jr. and Jimmie Johnson. XM is the sports leader in satellite radio, with more than 5,000 live sporting events in 2006. In addition to the Indy Racing League, XM has Major League Baseball, National Hockey League, NBA games on ESPN Radio, NASCAR, PGA TOUR, college football, and college basketball. XM also offers the most sports talk on satellite radio, including its newly-launched XM Sports Nation channel, ESPN Radio, ESPNews, and Fox Sports Radio.

About XM Satellite Radio
XM (Nasdaq: XMSR) is America’s number one satellite radio service with more than 7 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, the Country Music Hall of Fame in Nashville, Toronto and Montreal, XM’s 2006 lineup includes more than 170 digital channels of choice from coast to coast: the most commercial-free music channels, sports, talk, 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, Toyota, Hyundai, Nissan, and Porsche, is available in more than 140 different vehicle models for 2006. XM’s industry-leading products are available at consumer electronics retailers nationwide. 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 3-3-06. Copies of the filing are available upon request from XM Radio’s Investor Relations Department.

Contact Information

Anne-Taylor Griffith

XM Satellite Radio

Contact via E-mail