Here’s the new BMW X6. No honestly, it’s the new X6. Yes, we thought they’d sent us pictures of the X4 by accident, but a close look showed the X6 badge. See for yourself. Among the X6s in the shots here, there’s a cherry-red car  – and that one is an X4. We might have wasted few opportunities to say that the last X6 was a vulgar machine with a fat backside and a stuff-you outlook. But hey, that didn’t stop a showroom stampede. Around the world, BMW sold an astounding quarter of a million of the things in its lifetime. And they’ll sell some more yet, because it’s still on offer. This new one doesn’t actually go on sale until the end of this year. The new X6 is, as you’d expect given BMW’s inexorable across-the-range technical evolution, better in pretty well every…