► Tops Cayenne Coupe Turbo S E-Hybrid
► Additional range-topper for Cayenne SUV
► GT-style exhausts, supercar-slaying grunt
Performance and electrification go hand in hand at Porsche, as the Stuttgart brand launches itself wholeheartedly into the battery age with a series of new models with electrifying performance.
And while cars like the Taycan pure EV may take all the plaudits, it's ramping up the hybrids too - and this prototype boosted Cayenne Coupe Turbo S E-Hybrid is believed to be a testbed for a new kind of Cayenne GT model.
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Notice the pair of round exhaust pipes nestling in the centre of the rear apron, GT-style. Where the regular Turbo S E-Hybrid sports a quartet of pipes at the back, this one looks for an even more sporting set-up.
How fast will the Porsche Cayenne Coupe GT be?
Pretty damn rapid, by the sounds of it. Our sources suggest this range-topping Cayenne will be powered by the maximum hybrid powerplant already under development for the Panamera sports limousine in a secret project dubbed 'Lion'. And that engine is reputed to be putting out a faintly ridiculous 800+ horsepower.
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So, yes: the Cayenne GT will be preposterously fast, if those figures on the Zueffenhausen rumour mill are to be believed. By our estimation, this will be a sledgehammer powertrain that'll easily overcome the circa-2.5-tonne kerbweight of one of the heaviest SUVs in the range (those turbo motors and large battery packs don't come cheap - in price or weight terms).
More spy photos and Porsche scoops