The similar 2011 BMW 550i gets 17/25 mpg city/highway with its automatic transmission, while the 2011 Mercedes-Benz E550 gets 15/23 mpg city/highway. While these figures are low compared to some luxury large cars, they are about average among V8-powered rivals. The EPA reports that normally-aspirated V8 models get 16 mpg in the city and 23 mpg on the highway, while the XF Supercharged gets 15/21 mpg city/highway fuel economy. The EPA has yet to provide fuel economy estimates for the 2012 Jaguar XF, but 2011 models didn’t see much of a penalty for additional super-charged power. The XF Supercharged puts 470 horsepower to the rear wheels, while the more aggressively-tuned XFR puts out 510 horsepower. Base and Portfolio models are equipped with a 385-horsepower 5.0-liter V8, while the two upper trim levels add a significant bump in power by using a supercharged version of the same 5.0-liter V8. Three engines are available in the 2012 Jaguar XF. Not to confuse the issue, but the electronic differential works just fine, it's just that if we were buying the car, we'd want a mechanical diff or one of the trick new e-diffs employed by Audi (S4) or BMW (X6).” - Autoblog Like most e-diffs, the XF Supercharged uses its ABS system to modulate the brakes to control wheel spin, resulting in a plume of brake fumes after a hard drive.
Reviewers note that the Jaguar XF has excellent handling, but say it falls short without an all-wheel drive option, which is available on rivals like the Infiniti M, BMW 5-Series, Audi A6 and Mercedes-Benz E-Class. Buyers can also opt for the top-of-the-line XFR, which puts out 510 horsepower. Base and Portfolio trims get a 385-horsepower V8 as standard equipment, while the XF Supercharged sees a boost to 470 ponies. While most other luxury large cars have six-cylinder engines as standard equipment, the 2012 Jaguar XF puts an emphasis on performance.