THINK large luxury SUV and BMW X5 is the model that comes to mind most easily. For better or worse, it’s a bit of a segment-defining model.

Now in its fourth generation, the X5 is bigger and more opulent than ever yet it has now been joined by the even bigger and plusher X7 to extend an already comprehensive SUV line-up that also consists of the X1, X2, X3, X4 and X6.

In the year to date, the new X5 is BMW’s second most popular model after the X3. We’re testing the range-topping – for now – M50d, a quad-turbo diesel performance variant with plenty of go-fast engineering to go with its high levels of luxury and technology.

It’s all a bit much, really, which is why plenty of people will absolutely love it.