The engine lineup in the Porsche Panamera E-Hybrid range comprises two significantly revamped mills; for the 4 and 4S E-Hybrids, this is a 2.9-liter twin-turbo V6 and for the Turbo E-Hybrid, it’s a 4.0-liter twin-turbo V8. In both cases, the combustion engine is paired with a new hybrid system featuring an all-new electric motor that generates up to 187 hp and 331 lb-ft of torque – quite a bit more powerful than the old setup.
This results in improved specs on the 4 E-Hybrid, which is now imbued with 463 hp and 479 lb-ft of torque (up from 455 hp) – that’s enough for a 0-60 sprint in 3.9 seconds as opposed to the 4.2 seconds on the previous car. The 4S makes 536 hp and 553 lb-ft, which is down from 552 hp, but takes no knocks in terms of the benchmark sprint, which it dispatches in 3.5 seconds. Top speed is 174 mph and 180 mph for the 4 and 4S, respectively.
For the most potent model in the lineup, total system outputs are 670 hp and 685 lb-ft. For reference, the outgoing Turbo S E-Hybrid made 690 hp and 641 lb-ft of torque, so power is down but torque has increased. The V8’s fuel injection pressure has been increased to 350 bar, and the valve train has been optimized. The new Panamera Turbo E-Hybrid PHEV can complete the 0-60 mph sprint in three seconds before hitting a top track speed of 195 mph. That’s right on par with the more powerful outgoing Turbo S E-Hybrid.
The new electric motor is integrated into the eight-speed dual-clutch automatic’s housing. Like the engines, the PDK transmission has also undergone heavy revisions. And, because a separate housing isn’t required, this setup has saved some weight, too.