@Ailantd: I like the first and the second one most.

The first one, because it looks like just a sailboat with wheels and a chassis.

The second one because it reminds me a bit of the vehicles in @simonstalenhag's painting "Missing Person" from 2015 (see https://simonstalenhag.se/other.html), but with a #FlettnerRotor and some #OverlandTrain vibes.

(I hope you don't mind the comparison, but despite having different styles, your and Simon Stålenhag's art both sport #RetroSciFi themes which I enjoy a lot.)

www.simonstalenhag.se

The Longest #Vehicle Ever Was A Trackless, #OverlandTrain Meant To Run On #Nuclear Power
The #LeTourneau #TC497 is an incredible feat of engineering that died before it could really get rolling. Today, only the lead control car remains of the 600-foot long semi parked at the United States #Army’s #YumaProvingGround in #Yuma, #Arizona. https://jalopnik.com/the-longest-vehicle-ever-was-a-trackless-overland-trai-1850539752 #Train
The Longest Vehicle Ever Was A Trackless, Overland Train Meant To Run On Nuclear Power

The LeTourneau TC-497 is an incredible feat of engineering that died before it could really get rolling.

Jalopnik