I tried looking up joint commercials from the early 2000s for either of these brand combinations and found nothing at all. Plenty for Mazda, Mitsubishi, etc. each separately, but no joint ventures. Curious if anyone else, especially OP, can find anything?
Every single one of those examples does have contrasts though. The mission Church wood is a different color, and the shadows you can see of the ceiling provide a third. The brutality has starkly different windows, the stairwell is accented in beige, and there is a lot of texture in the concrete. villa savoye has contrasted base, window trim, and again the white starkly contrasts with the reflective windows. Idk what this person’s neighbor house looks like but solid untextured teal (or any color) would look pretty weird imo without at least some differences in tone, texture, or like natural colored window frames at least.
I think you’re trolling but whatever, here’s a Mazda commercial from 1990 with no mention of Mitsubishi [https://youtu.be/10rtVBRjCK4?is=9Z0mLBV_rV9GFKew]