This is “Route 66,” a Spain short-form television series that was shot during a trip along Route 66. It received praise at several film festivals.
Instead of strictly a travelogue, this also is about a brother and sister that quarrel a lot, but eventually find reconciliation.
Total running time is about 1 hour, 25 minutes. It would be rated PG-13 for adult language. It’s mostly in Spanish, with English subtitles.