Every time I see Placido merge with his D-Wheel I think of Old Spice.

Placido: I'm on a horse.
Yusei: No. You 'are' the horse.


Oh and to answer your question, earlier. I believe Yusei is outside of Neo Domino. In that desert scene when he finds the crater? I think that's where he is, which raises a question on how could Japan have a vast desert around Neo... and possibly Kiryu is a lot closer to town then I thought.