Usually nice cars like this by a non high up manufacturer are blocked off from the public untill later in the show. I am sure if you go again to the autoshow by next wed or thursday, you will beable to sit in the z. I remember last year i went to the auto show like 3 times. First time i could sit in the z and sti, but not evo mr, 2nd time i couldnt sit in the z or evo but still the sti. and then the third time i was able to sit in all of them. The show is about selling cars to customers, so if you walked up to lexus, and proved you were a mulitmillionare, they would allow you to take a first hand look at an lfa, same with lambo n such. So with the z, Im sure if you go and its closed off, but talk to a representative and really show your devotion that you are highly considering this car, he will allow you to sit in it. Another suggestion is to go on a day thats not so busy. You went on a weekend which is HELLA busy, so of course they dont want a shiiiit ton of people trafficing through a limited production vehicle. Go on a weekday during work hours, and you will have much better luck sitting in more cars, plus no long lines!