Two-speed transmission for EVs could make a comeback.

Tesla Roadster Prototype for sale on eBayIt's been a long time since any production cars have used 2-speed automatic transmissions. With a new 2-speed transmission for electric cars, German supplier ZF Friedrichshafen is turning back the page on EV development. The clutchless 2-speed transmission Tesla attempted to use in the original Roadster found notoriety for the lengthy delay of...