XJR

The V8 engines remained in the new model, but were now the revised and more powerful versions found in the 2003 used Jaguar S-Type. The 290 bhp (216 kW) 4.0 litre and 370 bhp (276 kW) 4.0 litre supercharged engines from the X308 Mk II were replaced by the S-Type’s 294 bhp (219 kW) 4.2 L and 400 bhp (298 kW) 4.2 L supercharged units respectively, while a new 3.5 V8 was also introduced for the European market. Derived from the 3.2 engine of the previous model, it produced 265 bhp (198 kW). The 240 bhp (179 kW) 3.2 L V8 from the previous model was replaced by the 240 bhp (179 kW) 3.0 L V6 from the X-Type and S-Type. The V6 powers the XJ6, while the XJ8 is powered by a naturally-aspirated V8. The XJR is powered by a supercharged 4.2 L V8.

Follow up:

The XJ6 and the XJ TDVi are the only X350 models not sold in the Americas. In 2005 Jaguar introduced the diesel-powered XJ TDVi. The XJ TDVi features the same Ford-Peugeot-developed 2.7 litre twin-turbo V6 found in the S-Type. The model produces 204 bhp (152 kW) and 321 lb·ft (435 N·m) of torque, earning it praise as the most refined diesel engine to be found in any car, anywhere, with electronically controlled engine mounts in order to minimise vibration. Despite some critics’ concerns that the XJ’s styling is dated, the general consensus is that the X350 is an efficient car featuring sharp and agile handling, a smooth ride and powerful engines, particularly the V8 and diesel engines.