So yep, this is already being used in some restaurants and casinos apparently.
My only small concern is the wave file that keeps on playing. Alot of sites put music to their sites and that's okay but most will give the viewer a way to turn the volume down or even put and option to turn the music off. At least if that site has a way to turn the music off I couldn't find it. But that's really my only concern. I actually kind of like that particular music anyway, I wonder who made it.
Yknow i have to disagree on whether i think this is a good choice of design for its purpose.. I think anyone who has any knowledge of the work itd take to make this will appreciate it a lot, but from a general point of view i think its difficult to 'know where you are' with it. Just think it deviates a bit too much from a 'standard' site.. maybe if they had that menu drop down automatically or something.
I've observed people browsing the net and it seems as though people generally expect everything to be over intuitive - eg not reading before they click or bothering to get used to a diff interface.
I think that while it's visually tight, the wording and visuals are too esoteric. For me, this means I have no way in to the information. I can't imagine that anyone who doesn't know about cars would get it. Or maybe I just didn't stick with it long enough...but that could be the site's fault.