The 2.7 TDVi models use the same Euro IV-compliant twin-turbo unit from the smaller S-type, offering 204bhp and 321lb-ft of torque for a top speed of 141mph and 0-62mph acceleration in 7.8 seconds.
Jaguar claims combined fuel economy of 35mpg and CO2 emissions of 214g/km. In comparison, the XJ’s main rival, Mercedes-Benz’s S320 CDI, returns 35.8mpg and emits 209g/km of CO2, putting it two bands lower for company car tax. A unique feature of the XJ TDVi is the use of electronically-controlled active engine mounts, which Jaguar claims cancel out 90% of engine vibration at idle.
In common with the rest of the 2006 model year XJ line-up, the diesel model also features laminated glass to reduce external noise in the cabin. The diesel will be available in Executive, Sport Premium and Sovereign trim levels, the latter replacing SE in the range.
Prices have yet to be announced.
Engine: 2.7 TDVi V6 twin-turbo diesel
Performance: 0-62mph 7.8secs