OLATHE, Kan.--(BUSINESS WIRE)--Garmin International Inc., a unit of Garmin Ltd. (NASDAQ: GRMN), today announced the new RV 660LMT, a 6-inch navigator packed with features built specifically with the recreational vehicle driver in mind. Helpful RV-specific road warnings inform drivers of bridge heights, weight limits and sharp curves, while custom routing1 takes into account the size and weight of an RV or towable trailer to prepare the most convenient route for a driver’s journey. The RV 660LMT