They generally have two car's on display, plus the cut-up one, so three car's. The simulator is in the corner, the oxygen bar occupies the back wall, and scattered about are a few product displays, brochures, and plaques. It's not as big as the pics make it seem, 12 people in there at once would crowd it. If you're there, it's worth seeing, but I wouldn't make a trip for it or anything.
It is cool when occasionally you catch someone taking delivery of their car though.