Did you try a car without wheels? It looks the same just floating without wheels... but if you turn the stearing wheel to the sides a number of polygons breakes and moves with your commands. Specifically not polygons but vertices. There are more than 4 and maybe it doesn't takes the first four polygons replacing the wheels there is something more. If we could control this I think it would be useful for non conventional cars maybe a more realistic use for trailers or moving parts of cars and any type of vehicle.
It is difficult to control, I think. Because it is not consistent.
One of the DSI cars doesn't have the wheels as first objects even.
Still, the steering goes perfect.
I think the location of the vertices has something to do with it as well.
But a nice example was made several years ago by Overdrive.
http://forum.stunts.hu/index.php?topic=2913.msg56648#msg56648 (http://forum.stunts.hu/index.php?topic=2913.msg56648#msg56648)
(yeah, I basically read the whole forum before I first posted during the first pandemic lockdown in 2020) ::)
Oh yes, now I remember watching the video!
Ha, ha... yes, I remembered the same video and saw that Daniël had already posted about it :P
Thanks, I was going to post that as well. :D
Looks like that thread doesn't have the final video linked for easy viewing. So I'll link it here (https://www.youtube.com/watch?v=jD0eQxvSHSI).
I think I maybe did some short experiments afterwards with making the first four vertices like the rudders on an airboat or something, but if I did it was unsuccesfull enough to put the idea back in the box. I do agree though, with proper experimentation we should be able to do something cool with this concept.
(The other main trick in that video is replacing the visual object of ice roads with the grass model, in case you're wondering after seeing it.)
I think that for the movement animation to work the vertices have to be in the front (half) of the car.