Another for the Garmin Montana Not cheep but grate for cars/trucks, sleds, atv boats, hiking, The most versatile unit I have ever use. Its a touch screen and have not had any problems. Works with gloves on. You can get it with a camera if you like.
It allows you to put profiles for anything you wish to build. I have some made for snowmobiling, ATV, hiking, cabin. All with the maps I wish for the activate i want at the push of a button. I have use it on the sled without any cold temp issues.