Being a frugal man of simple means I think I spend more time with an eye on our test cars’ fuel consumption than some of my more leaden-footed colleagues. That and having a 36-mile each-way commute.

Actually, the journey is quite an easy one. I’m on the M40 motorway before I’m in third gear of a morning, then it’s the M25. a stretch of the M3 and, finally, a couple of miles of urban crawl before arriving at the office.

I’ve often noticed that I’m able to record noticeably better fuel consumption on the way to work in the morning compared with the evening drive home. To be honest, I’d not given it that much thought. The morning traffic tends to flow more smoothly than that in the evening, so I suppose I’d absently mindedly put it down to that.

However, I recently spent the weekend with Peugeot’s 5008. It featured, among many other things, a readout giving the car’s current altitude above sea level on the LED display. I’m sure this is something that appears on many other cars’ sat-nav/infotainment screens, but for some reason it really caught my eye in the Peugeot.