This one was an all-electric design, predecessor to the hybrid design followed a few years later. It won "Most Innovative Invention" at the great Paris World's Fair of 1900. Because of the attraction caused by the fair, 300 of these were sold.
And here is his hybrid invention with him at the wheel.
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With an electric motor in each front wheel, the car had a top speed of about 31 miles per hour. Versions of this car won several races, often with Porsche himself at the wheel.
One racing version, created in 1900 and capable of a top speed of 37 miles per hour, had electric motors in all four wheels, allowing Porsche Cars to claim that its founder created the first all-wheel-drive vehicle.
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What made Porsche's electric car so revolutionary was the manufacturing simplicity and energy efficiency engendered by placing the motors directly at the wheel hubs.
With no transmission or cables of any sort needed to carry energy from the motors to the wheels, 83 percent of the energy used by the car actually went to move the car. That compares to less than 40 percent for modern internal combustion engines.
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http://money.cnn.com/galleries/2007/autos/0711/gallery.porsche_first_hybrid/index.htmlHe went the next step by including a combustion engine onto his hybrid design to generate electricity for the electrical motors. Battery technology in his day was primitive and wore out quickly, offering limited range for the vehicle, so he decided to include the engine to boost range.