when back in 2020 at HELHa's 3D animation class we had the Wacky Races subject to make as a short (with our groups) we had to come up who (besides Dick Dastardly) would win, what the traps would be, the background ....... and had a blast from the past when I found this piece of storyboard I suggested back then.
thanks again for Hanna Barbera Inc to let me use the Wacky Races theme.
In France Wacky Races is called les fous du volant
Dick Dastardly is named Satanas and his dog Muttley is called Diabolo.
And if you're asking , yes it is a portable hole being used and lost to the wind.