Some reviewers report that the fuel-saving engine start-stop system does not operate smoothly when the engine is starting back up. They say the XF 3.0 is a better choice, because it delivers quicker acceleration without much of a fuel economy penalty, and the V8 models are abundantly powerful. Some test drivers write that the base 2015 XF 2.0T’s acceleration is sufficient, but others note that some four-cylinder rivals are faster, including the BMW 528i. Jaguar says the 2015 XFR-S can accelerate from 0 to 60 mph in 4.4 seconds and hit a top speed of 186 mph. The top-of-the-line XFR-S has a supercharged, 5.0-liter V8 that produces 550 horsepower and 502 pound-feet of torque. The performance-oriented 2015 Jaguar XFR has a supercharged 5.0-liter V8 engine that generates 510 horsepower and 461 pound-feet of torque. V6 and V8 models come with a start-stop system, which shuts off the engine when the car is stopped in order to save fuel. The XF 3.0 model gets 18/28 mpg, which is decent for a six-cylinder luxury car.
Rivals like the Audi A6 2.0T and BMW 528i use less fuel. According to the EPA, the base XF gets 19/30 mpg city/highway, which is unimpressive for a four-cylinder luxury car. Every XF is equipped with an eight-speed automatic transmission. The XF 3.0 Portfolio and Sport come with a 340-horsepower, supercharged 3.0-liter V6 and the XF 5.0 Supercharged has a 470-horsepower, supercharged 5.0-liter V8.
The base 2015 Jaguar XF 2.0T Premium comes with a turbocharged 2.0-liter four-cylinder engine that makes 240 horsepower. Unlike some rivals, it doesn't feel big and bulky in corners." - AutoTrader (2014)
"The XF is a product of Jaguar's recent reinvention, and it is among the more fun-to-drive sedans in its segment." - Kelley Blue Book.Auto writers are also impressed with its powerful V6 and V8 engine options, though some say that the base four-cylinder model is slower than comparably equipped cars. According to critics, the 2015 Jaguar XF has very sharp handling.
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