The title I'm looking is for a movie from the 70's or 80's about one man in a planet with sand driving a truck and a woman who asks for a lift to go to her father's home, which is under the sand. The home is in a location such that they have to move a car down a ramp, while holding it with a rope. Sorry, but that is what I remember from this movie.
I think, as people have commented, that you may be mixing two different films. The bit about the ramp is probably from Cherry 2000, but the rest of it doesn't quite fit. I suspect you may also be looking for "Spacehunter : Adventures in the Forbidden Zone", which was a 1983 movie with Molly Ringwald and Peter Strauss heres the Wikipedia link
From the article :
Wolff continues on alone, but soon catches a teenage Scav named Niki (Molly Ringwald) trying to steal his Scrambler. She convinces Wolff that he needs a tracker if he is to survive The Zone and Wolff reluctantly takes her lead.
The planet they are on is sandy desert and the "Scrambler" is a 4 WD / multi-terrain vehicle.