Yes it is the first Sunday of every month. It's off windward parkway (exit 11 on 400). There was a new McLaren MP4-12C there today and last month a Bugatti Veyron. 500-600 cars show up easy countless lambos, Ferraris, lots of classics. Anything and everything you could imagine. You can pull up youtube and search caffeine and octane and see what it's all about. My only complaint is that it's getting so big, people are starting to arrive earlier and earlier. I pulled in a 6:30 this morning and the main lot was almost full.