You'd be better off saving the money you'd spend on a CB and put it towards a Ham radio. Unless you want to talk to truck drivers on the freeways, there's not a whole lot of need for a CB radio. Possible exceptions would be using one for a 4wd trip with a group etc. and even there you'll find a lot of folks are using 2 meter Ham units in their vehicles.

Get your Technician's license first, then find yourself an "Elmer" to guide you towards the equipment. I see your posting from Wyoming, try and find a Ham radio club if there's one in your area.