While most 911s will usher in the era of electrification by powering an integrated starter-generator via a 48-volt electrical system that complements the brand's famous flat-six engine, the model range will eventually add high-voltage gasoline-electric power. The same goes for the package option mix. The hybrid powerplant is expected to appear on the 911 sometime after 2025, likely to be named T-HEV.
Said to have been developed jointly with Rimac (45% owned by Porsche), the hybrid system consists of a 400-volt electrical system, an integrated starter-generator, electric motors driving the front wheels (generating around 80 to 90 horsepower), and Approximately 2.0 kWh battery, supplemented by gas engine or regenerative braking. The total weight of the powertrain's electric propulsion components is reported to be less than 27 kilograms.
A 395-horsepower twin-turbocharged 3.0-liter flat-six engine modified for hybrid use covers the gasoline side. Total system output is expected to be approximately 475 horsepower. Unfortunately, the complexity of the powerplant means that a 911 so equipped will forego the option of a manual gearbox. There are rumors that Porsche is developing a more powerful hybrid model with a total output of more than 520 horsepower, which is enough to bridge the performance gap between the 911 GTS and Turbo models. The powertrains of these two models will also undergo significant changes. .
Internal documents indicate that the GTS and Turbo will ditch the current 3.0-liter and 3.7-liter force-induction flat-six engines in favor of a new twin-turbocharged 3.6-liter unit. The naturally aspirated version will eventually replace the 4.0-liter engine in the current GT3, GT3 RS and S/T. The 3.6-liter-powered 992.2 GT3 is expected to arrive in 2027. The 992.2 Carrera and Carrera S models will retain the twin-turbo 3.0-liter engine for now, albeit with a slight increase in power output.
Porsche didn't reveal any details about the 911 hybrid, but did say the newly developed powertrain draws from the company's racing arm. Presumably, lessons learned from the 919 and 963 projects have helped the road car division design the electric 911 to meet increasingly stringent emissions regulations. About a year ago, CEO Oliver Blume said the new cars wouldn't be plug-in hybrids and therefore wouldn't have charging ports.
The most interesting rumor surrounding the 911 hybrid is the possible launch of an electric GT2 RS with a mild-hybrid setup. The combined output of the electric motor and twin-turbo 3.8-liter flat-six is expected to be over 700 horsepower. Torque figures are unknown, but rumors suggest there are plans for a "significant increase" in torque over the 911 Turbo S. Front/rear weight distribution is 39 :61.
A truly all-electric 911 is still a few years away, though, with such a powertrain not coming to market until the next decade. It will likely launch alongside the 998-generation 911, the replacement for the 994-generation car that will debut in 2028 as a successor to the 992. Notably, the European Union has agreed to exclude synthetic fuels from a 2035 ban on new cars that produce harmful emissions. This could mean that the 911's days with internal combustion engines are numbered.