The truly great cars are the ones you long to drive every day. Like a faithful hound, they are always there, ready to please and entertain. So does the Lexus IS300h tick that box?

To be honest, I can’t fault the engineering. The petrol-electric hybrid engine is an astonishing performer, returning 49.3mpg during the week and responding in every sense like a conventional car.

The IS is very easy on the eye too, with that BMW-esque rear-end and some neatly cut sculpting on the side panels. Not sure about the bug-eye headlights but still a great looking saloon.

But let’s face it, it’s going to meet very stiff competition in the premium brand sector and there are a few areas where the Lexus simply doesn’t measure up.

First is the painfully designed centre column of the dashboard that houses the sat nav. It doesn’t look anything like premium brand material to me. Then there is the sat nav itself, which doesn’t input full postcodes. Come on Lexus, that’s just not acceptable any more.

And finally, the driver’s seat, which didn’t marry up with my back in all the right places. It probably works for a lot of people but that also isn’t good enough these days.

Overall, a worthy rival to the best of BMW and Mercedes but a class-leader? I think not…