Sorta: https://phys.org/news/2019-10-rats-tiny-cars-scientists.html
Those look like LEGO wheels to me!
Coming soon to an FLL tournament near you? (OK, let’s sure hope not—besides the chaos that would surely ensue when one of the rats got loose, it’s really hard to find LEGO-branded rats.)
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Phil Smith III
Coach, The Capital Girls (retired)
Team 1900 (2002)
Team 2497 (2003)
Team 2355 (2004)
Team 1945 (2005)