With the apparent success of the 360, Garmin is wasting no time in getting its next Nuvi GPS through the door and out to market. The Nuvi 660 is the latest in the product line to get the FCC stamp. In addition to a wider 4.3″ display, the new model features an FM transmitter that can presumably be used to to broadcast driving directions over car stereos. It also has GTM20 and GTM21 capabilities that will help clue drivers in to traffic-congestion. No word yet on when the 660 might be available, but it’s safe to say you’ll see it on shelves before the end of the year.

Garmin Nuvi 660 GPS FCC Approved [MobileWhack]