AT LAST there are reasons of the head as well as the heart for buying an XF, now that Jaguar has dropped the price, introduced a gutsy and economical four-pot twin-turbo diesel, and improved many of the little foibles that blighted this British beauty in the past – and all without losing an iota of charm.

So before signing up for that base-model E-class, 5 Series, A6 or GS, you owe it to your accountant to check out the accomplished XF 2.2D.