Garmin nuvi 42LM offers essential driving guidance that is far from ordinary. Comes with a bright 4.3" display, spoken turn-by-turn directions and innovative, driver-friendly features. Preloaded maps let you locate addresses and millions of points of interest with ease. Lane assist with junction view uses brightly colored arrows and detailed images to indicate the proper lane for a turn or exit. n?vi also displays your current speed, the speed limit and accurate time of arrival. The Essential Series is sleeker and thinner, with a re-designed mount that attaches from behind, for less distraction.