The days when Rolls-Royce used ambiguous terms like “adequate” to describe its power output are long gone. The Phantom Drophead Coupé’s 5776 lbs. are motivated by a 453 horsepower 6.7-liter V12 mated to a six-speed automatic transmission. Torque is a prodigious 531 lb.-ft., more than enough to get the mighty Roller rolling. Rolls-Royce estimates 0-60 mph in 5.7 seconds, and top speed is limited to 149 mph. We’d call that “more than adequate.”