The nuvi 370 builds on the nuvi 360, using the same 3.5-inch display, mapping data, routing engine, and music player. The nuvi 670 builds on the nuvi 660, using the same bright 4.3-inch widescreen display, mapping data, routing engine, music player, and traffic data. Thankfully, the nuvi 670 WILL include the integrated FM transmitter. The European version of the nuvi 660 lacked the FM transmitter due to local EU laws banning such devices in the car.

Both the nüvi 370 and nüvi 670 come with an integrated traffic receiver that leverages available traffic service broadcasts to notify drivers of traffic congestion, accidents, construction, and weather-related delays. The nüvi will also automatically suggest alternative routes to avoid delays. In Europe, most countries provide real-time traffic broadcasts free of charge. In the United States, service for the nüvi 370 and nüvi 670 is provided by Total Traffic Network and includes the first three months of traffic service for free, after which it'll cost you $60/year to subscribe to the service.

Both nüvi’s include Bluetooth capabilities and an integrated microphone and speaker, providing for hands-free mobile phone calls. This feature makes it possible for drivers to make and receive calls using the nuvi’s touchscreen interface, and access the phone’s personalized phone book, call history log, or the nüvi’s internal points of interest (POI) database. More than 200 Bluetooth phones are officially supported.

Garmin has also announced an Asian Americas version of its nüvi 350 and nüvi 660 products. These devices allow North American motorists who speak Mandarin Chinese, Japanese, Korean, Thai, or Taiwanese to use their GPS in their native tongue. Menus and text on the touchscreen interface are displayed in one of five Asian languages. In addition, the turn-by-turn, voice-prompted directions are audibly announced in Asian languages. Garmin claims it is the only manufacturer to offer an Asian language interface combined with North American maps.

Also announced at CES, the entire nüvi product line will soon accept Garmin’s U.S. Topo and BlueChart cartography. The U.S. Topo cartography will provide basic information such as terrain contours, elevation information, trails, and rivers. BlueChart will show shaded depth contours, intertidal zones, spot soundings, port plans, and navaids with view range and coverage. The cartography will be available from Garmin’s website.

The nüvi 370 and nüvi 670 are expected to be available in February at an MSRP of $899 and $1099, respectively. The nüvi 350 and nüvi 660 Asian Americas versions are expected to be available in March 2007 at an MSRP of $599 and $899, respectively.