Porsche Cars of North America Inc. has signed a deal with XM Satellite Radio, while Bentley Motors Inc. has added Sirius Satellite Radio, in a pair of exclusive deals announced separately by Sirius and XM Oct. 30.

XM has been available as a factory-installed feature for Porsche’s Cayenne models since 2005 and now will become available for other Porsche models. Consumers purchasing a vehicle with XM will receive a complimentary three-month subscription.

Sirius will be available beginning in 2007 in select Bentley models in the United States and become a standard feature available in all Continental GT, Continental GTC and Continental Flying Spur vehicles beginning with the 2008 model year. All vehicles priced at $165,000 or more will include a lifetime subscription to Sirius.