That's the thing, I don't have a problem with those vehicles in Blade Runner and Judge Dredd being listed, I was just drawing a comparison because they are fictional vehicles as well.
And this here
http://www.imcdb.org/vehicle_57922-Made-for-Movie.html is quite similar to the kind of vehicles used in the hangars in Star Wars and Empire. Only difference is Star Wars is set in an alternate universe, although I don't think that really matters that much. I'm not asking to list the Jawas Sandcrawler because that's obviously just a model.
I suppose with the Landspeeder though most people don't realise it was a car underneath, they just took it to be some kind of model with special effects used to make it look like a hovering vehicle. But the fact is there was a three-wheeler Reliant underneath. I remember when we talked ages ago about an IMCDB for aircraft or all kind of vehicles, and I was against the things like the Millenium Falcon and Starship Enterprise being listed because the way I saw it, they never existed as working vehicles, it was all models, special effects and interior sets. Alexander accused me of being narrow-minded!
But I'm getting the feeling you really really don't want these listed on the site and we aren't really on the same page in logical terms. Thing is we've already allowed enough different kinds of stuff on this site, including cartoons. I could ask the opinions of even more people or I could respect your wishes and let it go (I suppose someone on this site has to listen to the webmaster!
)