Despite having fewer cylinders, Bentley’s block is really bigger and thirstier. The Bentley Mulliner Bacalar  is propelled by way of a 505-hp twin-turbocharged 6.75-liter V-8 drive that turns the trunk wheels via an eight-speed automatic transmission. The EPA estimates the Mulsanne will earn 10 mpg in the town and 16 mpg on the highway. For comparison, the S650 is rated at 13/21 mpg city/highway and…