The crew over at Motor Trend has lined up a great comparison: the Continental GTC Speed Black Edition vs. the Mercedes AMG S65 Cabriolet.  The two ultra luxury convertibles have several things in common: 12 cylinders, luxurious appointments and a fairly high asking price.  Neither car is imported to the U.S. in large numbers but I’m sure there are buyers shopping these two and wondering which is the best choice. Enjoy the video below as Jason Cammisa and Johnny Lieberman put the two through their paces around and in New York City.