Since Navteq makes the MINI Nav system and the MINI is able to have Sirius added into it's built in audio system, I thought this press release might be interesting:

Real time traffic data available for 30 markets

Sirius Satellite Radio Inc. reported Tuesday that it signed an agreement with digital-map maker Navteq Corp. to provide subscribers with real-time traffic data.
Financial terms of the agreement were not disclosed.

Sirius said the new service, which will be available in 30 markets at first and is expected to expand to 50 markets, will provide customers with regularly updated traffic information to be integrated with in-car navigation systems. Sirius spokesman Jim Collins said the company cannot say at this time when it will launch the new service.

The company said automotive and retail partners intend to offer the service as a product upgrade for upcoming auto navigation systems.

The traffic service is expected to provide an additional revenue stream, Sirius said.

Currently, subscribers pay $12.95 per month but Sirius plans to roll out a host of video and data-type services, like the traffic service, that could be offered in a tiered pricing structure, Collins said.

Shares of Sirius fell 11 cents, or 1.4 percent, to $7.93 in morning trading on the Nasdaq, while Navteq shares dropped 34 cents, or less than 1 percent to $43.96 on the New York Stock Exchange.