Compare Garmin nuvi models with our handy chart, with price comparisons and links to our own Garmin nuvi reviews..Alphachooser determined that the Garmin LMT is the best GPS with backup camera input , based on reviews yielding a compound ranking of . Our list .Garmin nuvi Drive Series GPS Comparison Chart Ultimate Road Navigator. And a personal Travel Assistant. Models in the nuvi series feature an ultra slim design for .I was in England last year and had my GPS stolen. I had to buy another Nuvi LM to find my way around, but unfortunately it only had the UK, Ireland maps on it..