The Porsche 911 Speedster Concept: a 500 horsepower open-air thrill ride

ATLANTA, June 8, 2018 /PRNewswire/ -- Porsche unveiled a thrilling concept as part of the 70th anniversary of its sports cars: the 911 Speedster Concept is a drivable vision of a particularly exciting open-top sports car. It links the very first Porsche 356 "No. 1" Roadster, which...