Michael Hohl hit the nail on the head:
"It reminds my of Buckminster Fuller's 'dymaxion car' that could also turn on the spot (though without a tethering cable ;) )"
All 3 robots are hybrids of vehicles and products: TST_003 = Dualit + Airstream; RDO_002 = Bush TR82 + GM Futurliner and as Michael pointed out, MXR_011 = KitchenAid Mixer + Dymaxion Car. We are playing with futurism as a 'retro' phenomenon. The styling and color palette is based on the 1950s RayGun Gothic - or as we like to call it SodaPop Chic!
Other (more subtle) references in the color choice:
MXR_011's fire engine red is simply the color of our actual KitchenAid mixer.