I also attended the "Tastes of Lexus"; however I was disappointed about the lack of orginization. I scheduled an appointment for 4:00PM because that was the only time slot available. When I arrived, 15 minutes early as requested, it was obvious that I was probably not going to get a chance to test drive the GS450h.
I stood in the GS line for 15 minutes, then swithched to the LS460 line and stood for 30 minutes, but left before test driving either vehicle. Very disappointment in the lack of organization...not immpressed, even though I own 2 Lexus.