Many Thanks

As you supposed I need mainly for my car, but is true that I loke a lot the mountain so maybe I could buy someone to use there also.
I am From Spain but I would need with the maps of Europe, I dont know if it is easy to change the map in Garmin, I know that in Tomtom is very easy but in Garmin I dont know.

I was checking the 3790T, what do you think about this model?
About the price, it is not really problem but I would prefer not spend more than 250€ - 260€

Thank you for you comments