At the beginning of this year, Jaguar revamped its powertrain lineup, including the engines in the still fresh XF and the XK. The new direct injected gas V8 and up-rated diesel V6 provide improved efficiency and more power, especially in the case of the diesel. The 3.0L is now available in two flavors, 237 hp and 271 hp for the XF S. The crew at What Car? in the UK have had a chance to try out the XF S and, unsurprisingly, were impressed. The compression ignition XF is rated at 35 mpg (U.S.) with CO2 of just 179 g/km; very impressive for a luxury sports sedan like the XF. The new engines have better low end responsiveness than their predecessors as well as being quieter. Hopefully the success of the new diesels from German competitors will cause Jaguar to see fit to let us have a crack at the new models. We're not holding our breath though.
[Source: What Car?]