Gran Turismo 5 Prologue was prominently featured at the recent Gran Turismo Awards. The 2007 SEMA show is the perfect collaboration between the auto and gaming industries.
Forza is actually at almost all of the American LeMans races. Where actual LeMans drivers have tested the machine at the track they are going to race at with the actual cars they are going to race. There lap times are almost identical to the lap times they throw down on Forza. So no you don't see Forza at Sema, you see it at actual race tracks.
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that's the reason no car enthuasist should miss out PS3 and GT 5. You dont see forza doing this don't you.