The idea of an M4 convertible in wintertime, in Sudbury no less, is hilarious. I love these type of articles as they are a far cry from the "normal" reviews of cars such as these (i.e. in California/somewhere exotic).
As for the engine comment... I wonder what effort needs to be made to make these turbocharged engines sound as good as the NA engines they replace? Clearly, these are the engines that are going to be in virtually every car moving forward, but along with the efficiency upgrades, I hope someone can nail the sound qualities as well. And I don't mean just playing cool sounds over the stereo.