Well I have the Garmin V GPS and it came with City Select. Now the city select is pretty much the same as metro guide, EXCEPT that city select has the auto-routing feature for the GPS’s that do precise point to point directions.

I also have the metroguide for when I had a Garmin GPSMap 76. Now this unit didnt have the auto-routing feature and metroguide pretty much is for mapping only. The map will move with you while the unit is on the mapping mode on the GPS. This adds detailed mapping that doesnt come preinstalled on the unit. You just hook it up to the computer with the provided cord and upload the maps that you desire up to the max. megabites that your unit has. But doesnt give directions to the point. I hope this helps out.