Vonnen's Shadow Drive adds up to 150 hp and 150 lb-ft of torque to Porsches from the 356 to the 992, starting at $54,000.
A Hybrid Air-Cooled Porsche 911 Should Infuriate Purists, But This One Makes Sense
Vonnen's Shadow Drive adds up to 150 hp and 150 lb-ft of torque to Porsches from the 356 to the 992, starting at $54,000.
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