Expected to be based on the same iQ A1 platform that underpins the new XE, the new XF promises to be lighter in weight and more advanced than the model it replaces. Look for most of the same engines to carry over, including gasoline and diesel options ranging from four cylinders to eight, with and without forced induction, with a potential plug-in hybrid version to follow. The current model is available in rear- and all-wheel-drive configurations and in sedan and wagon body styles, and we'd expect its replacement to follow suit.
The low-profile wheels and dual exhaust pipes on one of the prototypes spotted suggests it would lie somewhere near the top of the range, while the second prototype packs taller sidewalls and a trailer hitch. It's hard to discern much esle from the spy shots, heavily camouflaged as they are, but as with the technology underneath, we'd expect styling to takes some cues from the smaller XE as well. Jaguar will, of course, need to tread the line between distinctive and understated if it's going to fend off the Maserati Ghibli and take a bigger slice of the pie away from the likes of the Audi A6, BMW 5 Series and Mercedes-Benz E-Class, the Lexus GS and Infiniti Q70, the Cadillac CTS and the upcoming new Volvo S90.