I'd say 10AM is more than early enough for first-arrival. There are some that can only make it out in the afternoon, and there have been requests to dyno first, and to leave early (which is TOTALLY fine!)
I just want it to be a relaxing time. Kind of a in & out dyno day, where we get to meet other enthusiasts. At least we mostly have Z4's
Of course, you're also welcome to stay the rest of the day. We might all have dinner together towards the evening, we'll see. But if there are some that can't stay all day, then let me know and I'll schedule your car to go up ahead of the others
