Road Warriors!

I saw the suggestion of an all sentient car team in the comments and at first I thought I wouldn't be able to fit many of them on one cover.  The idea stuck with me though, so I gave it a shot.  It's been well over four decades since I watched Chitty Chitty Bang Bang, so I forget whether that car has a mind of its own, like the others.  If not, this is the Earth-STF Chitty, a sentient variant!