The absolute best place to start would be with the trillium bmw club. Unfortunately they only hold 3 events a year and you've missed the first two already, second being only two weeks ago. The next one is sept 12 and 13th. Check out the link for info. I instruct there, so if you have any questions, I'll be able to answer them.
The next best place would be with the SVTOA holding their event this year at the grand prix track at Mosport. August 31 and sept 1. Tough days for some, since it's a monday/tuesday. You don't need to own a Ford product here, as you don't need to own a bmw product with the bmw club either.........