BMW XM vs McLaren Artura

What's the difference?

BMW’s new XM is a tricky customer to pigeon-hole. Yes, it’s a huge, super-lux SUV and, yes, it’s all-wheel drive and features a station-wagon layout.

But it’s also a M-car and that infers super high performance. Weighing in one the wrong side of 2700kg, however, makes that a difficult task for any engineer.

This car also left us wondering if perhaps the glory days of M Division sports cars and coupes might behind it and SUVs like this one represent the road ahead.

But fear not: The CEO of M Division himself, assured us that the XM is a showcase for what an M badge can do, rather than a mission statement for the brand.

So, with that in mind, does this car have the wow factor that places it somewhere between peak oligarch and a motor-show concept car? Does it move the goal posts for big luxury SUVs? Does it even matter that it’s a plug-in hybrid?

Obviously the headline item of the new McLaren Artura Spider is the ability to drop the top and feel the wind in your hair, or, should you live in Melbourne, at least the damp mist on your face.

But this new plug-in powerhouse has plenty more to offer than just its folding hardtop.

The coupe and convertible are more powerful, there’s a new and louder exhaust, faster gear shifts, a richer rev range, better suspension and better braking.

Oh, and there's a new feature designed to unlock your inner hooligan, but we’ll come back to that one in just a moment...

But at its core, the Artura Spider is a plug-in hybrid monster that goes someway to previewing the future of the supercar species.

Does electrification enhance the excitement? We strapped in to find out.