Jaguar’s engineers have been very busy with the development of the new XF, renting an entire house and garage behind a fuel station in Austria to work on the new car in privacy. Or so they thought. This latest barrage of spy images reveal several Jag prototypes, including two new XF saloons, an older S-Type test-mule and a production version of the Apex Motorsport prepped XKR GT3.
When questioned, one of the drivers revealed that not only were they testing the new XF, but development work for a high-performance version of the XK was also underway. The gaping holes in the test car’s bonnet are said to send cold air to a newly developed supercharged engine that develop upwards of 500hp. Racing buckets and a complete roll cage meant that this coupe was something special - a genuine rival to the M6.
The images, courtesy of our friends at Autogespot, also reveal one of four S-Type prototypes with widened wheel arches, no doubt a camouflaged mule for a performance version of the new XF. Click ahead for more details and spy images.
Previous reports suggested that Jaguar would release two new supercharged models. One, a 4.2L V8 version with around 420hp on tap, and the other a high-performance flagship with a supercharged 5.0L V8 developing between 460 and 500hp that will be shared with the XK coupe.
Update: These fantastic spy shots were taken by serial car-spotters Riicharrd and Crispijn. You can check out more of their work here.