A pricey yet clever means to add big electric power to your Porsche.
With the knowledge that Porsche has baked a hybrid variant into the product plan of the latest 992-generation Porsche 911, the electrical whine and additional forward thrust produced by this modified 991-era 911 Carrera provides a tantalizing glimpse into the future. This is the effect of the Vonnen Shadow Drive (VSD), an aftermarket hybrid conversion designed by Vonnen Performance that, provided you can justify the not-insignificant cost, integrates a battery and an electric motor into Zuffenhausen’s sports car years before the factory gets around to it.
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https://www.caranddriver.com/reviews/a27220147/vonnen-porsche-911-hybrid-drive/
