I drove our Jaguar XF a few hundred miles across the country at the weekend and truly found it one of the most relaxing cars that I've ever driven.

The diesel engine's refinement is tried and tested, but what doesn't get as much attention is that incomparable ride/handling compromise that lets you ride in comfort but also position the car with abandon.

I'm a great fan of the S-Type, but wasn't until i parked by my father-in law's S-Type and looked at the two of them alongside each other I could see for myself how much Jag had moved on.

To make matters even better, the XF has got an absolutely cracking Bowers and Wilkins sound system.