For two decades, Cadillac's V-Series models have been the pinnacle of the American automaker's performance models. It started with the model powered by Cadillac's first twin-turbocharged V6 engine, ...

Blackwing lives on, but only in name. The twin-turbo 4.2-liter V8 from which the performance-esque name came was killed off four years ago. And so was the Cadillac CT6 sedan that came with it. The ...