As I write this, some time after driving the new XF, Jaguar Land Rover has committed to a new era of electric vehicles within five years.

While this might seem to be a bold move, something about my drive in the latest XF felt like a swansong. As I was being propelled serenely around the northern reaches of the Cotswolds, the XF Sportbrake, powered by a 204hp version of Jaguar's four-cylinder diesel engine, felt like it could be as accomplished as the marque's internal combustion engine models will ever get.

There was no indication at the time that Jaguar was just days away from unveiling a new direction for powertrains, other than a spokesperson confirming that we shouldn't expect to see a plug-in hybrid version of the XF (as customers wanting these could choose the E-Pace or F-Pace), and that for the second half of this model's incarnation it would be more of a retail customer proposition than aiming for fleet business.

The lack of a plug-in variant would be a big factor in luring user-choosers to the XF, especially as Audi, BMW, Mercedes-Benz, and Volvo all have the technology in their rival saloons and estates and, in most cases, would see a company director paying small car BIK tax for the perk of having an executive express as their business car.

But we also keep hearing that, for the short to medium-term at least, there are still many drivers who are better off choosing diesel.

That sounds like a good place to start - the updated XF is available with one diesel option. It uses new mild hybrid technology to help reduce fuel consumption and CO2 emissions, enabling the 204hp version of the engine to offer improved figures on its 180hp predecessor.

The cost figures we produce on this page is for the R-Dynamic S, although the car we tried was a slightly better equipped R-Dynamic SE.

The S has analogue instruments whereas SE and HSE have a full digital binnacle, but the entry-level model looks great value, especially as the XF range has undergone a price cut across the range between it being announced and orders being taken.

The equipment list shows how much the XF offers for the money, and all models come with the Pivi infotainment system, which is easy to learn, and comes with a slightly convex large touchscreen that is easier on the eye and finger.

Gone is the old rotary control for the gear selector, as the XF has a new, short, self-centring joystick. Jaguar really is ringing in the changes for the car's final few years of this generation.