Sirius Satellite Radio unveiled their latest offerings in advanced satellite-based data services for in-vehicle GPS navigation systems.

Currently available for the Alpine SIR-ALP10T SiriusConnect tuner, these new Sirius Data services provide information such as weather, local fuel prices and movie time information direct to your vehicle. The SIRALP10T is compatible with all Alpine satellite-ready headunts, and can interface with the Alpine NVE-N872A navigation system to deliver traffic data for 79 markets nationwide (requires navigation software version NVD-A801 to receive data service features).

MSRP is $299.99 for the SIRALPT10T, and it's available at retail... now.

See more in-person photos and info after the jump...

Starting today, XM has added 29 new markets to their XM NavTraffic service, providing real-time satellite traffic data to a total of 79 major and secondary North American markets. Add to that, four of NavTraffic's current markets will benefit from an increase in traffic data coverage within their metro areas.

XM NavTraffic feeds data on incidents directly to your GPS navigation system via XM's satellite pipeline, alerting you to blockages directly on the navigation screen and routing around a jam before you get caught in traffic. Drivers in these 79 markets will be able to learn about traffic incidents such as accidents, road closures or construction as they occur in real-time.

XM NavTraffic is available as a factory-installed feature on 2008 model year vehicles from Acura (MDX, RDX, RL, TL), Cadillac (CTS), Infiniti (G35, G37, QX56), Lexus (LS, LX), and Nissan (Altima, Armada, Pathfinder), as well as through a number of aftermarket and handheld units from Alpine, Garmin, Kenwood and Pioneer (and soon Audiovox).

XM NavTraffic is expected to be available in 200,000 vehicles by the end of the 2008 calendar year.

Check out the 29 new XM NavTraffic markets after the jump...