Not sure if it spits out lat and lon but you can input coordinates. I looked for elevation the other day and it was a no go. There are also a few generations of nav in the 5th gen at this point so maybe some do and others don’t.
I often use my old Garmin eTrex basic hand held GPS mounted in a holder suction cupped to the windshield for waypoint guidance and real time elevation.
I have a phone app called "Maps 3D" that shows latitude, longitude, and elevation. Free. It is mainly meant for trail hiking, but can be used on the road too.