Based on the wonderful images in the above links, it looks like the flag for the small "Bender/Tighina" area. If so, it would have a yellow lion in the bottom black part. Your 2 photos look like the flag on the car might have had a lion too (especially the bottom photo, the section of the flag right above the guy's glasses), but I can't tell for sure.
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https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Moldova_harta_administrativa.png/800px-Moldova_harta_administrativa.png
Based on the wonderful images in the above links, it looks like the flag for the small "Bender/Tighina" area. If so, it would have a yellow lion in the bottom black part. Your 2 photos look like the flag on the car might have had a lion too (especially the bottom photo, the section of the flag right above the guy's glasses), but I can't tell for sure.