The engine in question is JLR’s long-serving 3.0-liter V-6 turbo-diesel, a powerplant that can trace its origins to a long-forgotten joint venture between Ford and Peugeot-Citroën (giving a pleasing, if tangential, French connection). The engine has been cleaned up to meet U.S. emissions standards, through a urea-based exhaust after-treatment that includes an onboard tank of DEF (Diesel Exhaust Fluid) that’s claimed to be good for 10,000 miles between refills. This federalized version produces 254 horsepower and 440 lb-ft of torque, the latter available from just 1750 rpm; unfortunately we’re not going to get the 339-hp diesel V-8 that’s sold in Europe. EPA city/highway fuel economy is 22/28 mpg, a 5-mpg improvement over the supercharged V-6 both in the city and on the highway.