What is it?
Porsche is keen to sell us plug-in hybrids. It now makes three, although one is rather unaffordable, it being the £652,849 918 Spyder. The other two are the Panamera and the new Porsche Cayenne e-Hybrid, which replaces the plain hybrid version.
This upgraded petrol-electric Cayenne is part of the revised range presenting a freshened styling and new features that include the economy-promoting coasting mode provided by the previous hybrid alone, stop-start that kills the engine a few mph before halting and a launch-control system with the optional Sport Chrono pack.
It also has more precise suspension geometry and a greater dynamic range between the Comfort and Sport modes for both steel-sprung and air-suspended versions. Improved rear seat comfort and a heated screen option are among the detail improvements.
But the upgrades to the Cayenne hybrid are a lot more substantial. Aside from the facility to plug it into a cheaper mains energy supply, a lithium-ion battery pack of almost six times the kilowatt-hour capacity replaces the previous nickel-metal hydride pack.
That allows the electric motor’s output to jump from 46bhp to 94bhp, while the electric-only range lengthens from 1.6 miles to between 11 and 22 miles, although Porsche’s development engineers say they’ve gone further.