I went to Mexico via car then I went to Japan via car in a very short amount of time
This dream suggests that you have a desire to travel and explore new places. The fact that you were able to travel to two different countries in a short amount of time indicates that you are eager and possibly impatient to see more of the world. It could also suggest that you are looking for adventure and new experiences in your waking life. This dream may be encouraging you to be more adventurous and explore new opportunities.