It'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... Two-speed transmission for EVs could make a comeback.
It'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... 
Cars with plugs may be the cleaner and greener future, but at the moment, they make up only about 1 percent of global sales approaching 100 million vehicles a year. That means that automakers continue to work ceaselessly on more efficient gasoline engines and lighter vehicles to put them in. Last week, Toyota summarized its plans in that arena and... 
In order to meet stricter emissions standards, automakers are scrambling for any efficiency gain they can get in internal-combustion engines and powertrains. One of the most popular options for increasing efficiency is transmissions with a greater number of gears. Where 6-speed transmissions were once considered more than adequate, now seven...