What is it?
Automotive sacrilege - a Porsche with a diesel engine in it. Not that it's the first of course, the manufacturer relented to the clattery revolution while the Cayenne was still wearing its old skin, and the new version is likely to prove just as critical to the brand's UK market share.
Anyone who bought the previous diesel model is certainly likely to recognise the engine as it hasn't changed from the 237bhp 3.0-litre V6 lump Porsche already shared with its VW Group siblings.
Nevertheless, that powerplant now sits in a significantly lighter car thanks to a fine tuning of materials and construction methods, and start-stop helps drop the Cayenne's CO2 emissions to 195g/km.
The diesel model is priced slightly above the entry level 3.6-litre V6 petrol, and comes with climate control, cruise control, 18-inch alloy wheels, parking sensors and an eight-speed automatic gearbox as standard. However, there's a mountain of kit on the options list; our car came with full leather interior, 20-inch alloys, Bi-Xenon headlights and Porsche's Communication Management system which includes sat nav.