What is it?
The advanced petrol-electric hybrid, due to go on sale in the UK in August, replaces the earlier pre-facelift Porsche Panamera S Hybrid with some traditionally subtle exterior styling changes but, at the same time, significant modifications to its petrol-electric driveline, including a new on-board charger that forms part of the plug-in system and the adoption of a liquid-cooled lithium-ion battery in place of the older air-cooled nickel-metal hydride unit, among other detailed tweaks.
The result is a significant improvement in driveline efficiency and solid gains in performance, together with a big reduction in fuel consumption and CO2 emissions. The best of both worlds, or so Porsche would have you believe.
It is not all rosy, though. The changes to the driveline bring an additional 115kg in kerbweight over the old Panamera Hybrid, bumping it up to a hefty 2095kg – 325kg more than the entry-level Panamera.
The headline figures for the Panamera S E-Hybrid are its claimed combined cycle average of 91.1mpg and CO2 emissions of just 71g/km. According to Porsche’s claims, it can also dispatch 62mph from standstill in 5.5sec, 124mph from standstill in 19.0sec, 50mph to 75mph in 3.4sec and a reach a top speed of 168mph flat out.