Jaguar X-Type

But times change. Thanks to rising demand for a more refined and powerful generation of diesels, Jag is now launching nearly as many oil-burners as petrol models. And we drove the latest: a new evolution of the X-Type D.

This car's 155bhp 2.2-litre engine is shared with Ford's Mondeo ST TDCi, as is the six-speed gearbox. Torque is boosted to up to 400Nm, while in-gear pace is strong. Yet economy is barely affected - down 2mpg on the 2.0 car at 47.1mpg - although this model sits in the higher 18 per cent company car tax band. The new Jag compares well with rivals. The BMW 320d is more fun in corners, but the X-Type's comfort-oriented suspension makes for smooth progress.

At ΂£27,165 - ΂£1,000 more than the 130bhp car - the 2.2 SE Estate is good value given the performance boost. Jag diesels are here to stay.