In the early 2000s, Cadillac introduced one of the coolest concept cars ever, which was powered by an experimental V12 engine ...

In fact, as the story goes, news of a new 12-cylinder engine for Cadillac was used as a cover to keep the press off the scent ...

C/D SAYS: Aston Martin’s new Vanquish grand tourer is a two-door, fastback, V-12–powered rocket aimed at ultra-luxury rivals from Bentley, Ferrari, and Maybach. Learn More ...

Meet one of the last 12-cylinder cars on Earth–the Bentley Continental GT Speed. It's a supercar you'd actually want to commute in. You’re looking at a unicorn. You might guess I’m talking ...