There were 5 or 6 powerwheels. It's was funny as hell to watch. That one I took close-ups of was part of team zapco. It had 4 image dynamics horns mounted on the front and could play Sweet Home Alabama at 120dB driving by the mic.
Here was the competitor list
http://www.mecaforums.com/smf/index.php?topic=5593.0
109 total
39 SQ cars
5 Meca kids
75 or so SPL cars
It was a fairly good turnout although it was down a little from last year. It was a great time though. Inside at the Tennessee State Fairgrounds, we had a banquet with buffet style food that was part of the price and also free lunch on Sunday. It was a great time and everyone was real cool.