The back end doesn't look too bad in isolation - i.e. without a more balanced, cleaner rear alongside it such as that of the new 7-Series - but the huge and flabby expanse of unbroken boot lip does make it look like half the lamps fell off. When you factor in endless references to the Quattroporte in Jaguar interviews, I believe what we're looking at is a botched attempt to copy the Maser's vertical lamp clusters with a touch of fat-arse from the Flying Spur for Britishness.
Callum said: "I know you're struggling with the rear end of this car, lots of people will. That's the point."
That might be true, Ian dear, if luxury buyers have a history of "struggling" with the looks of their intended purchase, but trust me, they don't. Any hint of "what the hell is that about" and they'll go back to what they know - and what the people they need to impress will know - which is a BMW or Mercedes.
Speaking of such, odd looking clamshell designs made a comeback about a decade ago, the E65 7-Series and W221 S-Class both sporting them, but as the XJ arrives so the Germans are moving on. How very Jaguar!