As a photographer I know a little about this, its quite common to shoot one set of images in the car industry (and video too) with a reversible number plate and then flip the images depending on which side of the road people drive. I suspect they've done this here and then photoshopped the number plate. It then shows the streering wheel on the UK side, works fine with cars as they have doors both sides as a rule.
Probably a bit risky with a cali though as they will be getting into trade description issues with the door being on the wrong side. All the internal pictures do show it on the normal side. I did hear rumours of a twin slider beach once but I dont think they ever surfaced.