Toyota, Subaru, Mazda ally for engines burning hydrogen, e-fuels

Toyota 1.5-liter inline-4Toyota, Subaru, and Mazda on Tuesday announced a joint effort to improve efficiency and reduce emissions from internal-combustion engines. The development effort will take a number of different approaches, including smaller engines, according to a press release from the automakers. These engines will also allow for lower hoods, opening up new...