Im searching for a gps portable car unit that i can pre load multiple stops and has maps by zip codes and coun

garmin has the best and most detailed maps for the US. if you want to have a gps that allows multiple stops and optimize the best path the most economical garmin is the nuvi 750 for under $400


http://www.amazon.com/gp/product/B000UXD鈥?/a>