Y tu mama tambien
I would say my favorite road film is the mexican film Y Tu Mama Tambien. It is about two friends who go on a road trip to the coast with a woman they met at a wedding. The two boys try to seduce the woman, and tensions flare between all three of the characters. I love the movie because it focuses on sexuality, and the sexual tensions and growth between the three characters. I especially love the interaction of the two boys, who at the end kiss and wake up in bed together. Their friendship ends after this road trip.
I feel that the story tackles ideas of friendship and sexual attraction and the repression of feelings. As I understand it, the interaciotn between the two friends hits a hard point because of the sexual tension between them, and maybe the feelings between them ran deeper than they expected or felt. The movie is a fascinating look into sexuality through the use of a road trip: characters that are traveling away from their environment, who are getting to know each other, growing as people all the while enjoying the scenery around them. This movie just focuses more on sex, and sexual interaction, and the ways that those affect people's lives.