Normally People's Choice is one award for all cars in the judged and non-judged car show. There is no breakdown in People's Choice based on car model it is strictly a popularity contest.
I agree with many of your observations and I highly encourage you guys to email the convention team. Your feedback helps the next convention team as they plan the 2011 ZCON.
Z Car Club Association - 40th Anniversary of the Z.** July 28 - August 1, 2010 in Nashville, TN