Despite being a pretty bad long weekend for convertible driving—Michigan offered up a very par-for-the-course November compliment of damp, cold, cloudy days—my Thanksgiving drive did serve as a fine counterpoint experience in the 650i convertible. When I drove the car for the first go-round, it was nothing but top-down and sunny-weather driving through the balmy Mexican countryside. That’s nice and all, but it certainly didn’t give me much of a frame of reference for cold-weather driving in the new 6er, nor really for a lot of top-up stuff.