The Garmin nüvi 2557LMT is a 5″ mid-range model, part of Garmin’s 2013 Advanced series. Improvements in this year’s model include active lane guidance, traffic announcements, “Real Directions” and the slide-out Up Ahead feature shown above. I’ll explore those features in more detail below. The 2557LMT also includes map updates and ad-free traffic. read more