As far as I know the Etrex 20-30 are just tracking GPS's for hiking etc. I have a real old Etrex I use all the time I can load WPT and do Goto but it is direct to point does not allow roads and track weavering all over the place, so spend your money and buy a unit that you can modify with different apps. Save your 32 for when you get out of your car and go for a walk some where, just remember to take a WPT of your car first .