Excellent technical review from savagegeese of the CT5V Blackwing, probably the best and most comprehensive if you want a more in depth understanding of the technological underpinnings.
Seems to me as BMW is going softer and more mainstream with every generation that would make your typical Lexus buyer smile, Cadillac is going to where BMW used to be in terms of driver engagement and fun to drive factor. I would not have imagined this 10+ years ago, and I would not imagine that I may even consider buying one.