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Sportomatic gearbox - Porsche’s first automatic gearbox is more than half a century old… here’s how it works
Introduced to the world in 1967 by Porsche, the Sportomatic was the company’s answer to reinvigorating the 911 range for a push in the USA, where automatics were gaining huge popularity. At its heart is an all-synchro, four-speed 901 manual, but with a torque convertor and single dry-plate clutch. Technology explained  - SPORTOMATIC GEARBOXThat clutch is controlled by a microswitch on the gear lever. Move the gear lever and the microswitch activates a vacuum servo motor.
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