TOKYO — Toyota Motor Corp. and its Japanese carmaking allies Mazda and Subaru are doubling down on the next generation of compact, clean and powerful engines they say will emerge as potent weapons in ...

Toyota, Mazda, and Subaru announced a new collaboration developing new internal combustion engines. At a joint conference the three automakers emphasized their commitment to advancing engine ...

Explore how boxer engines really work, why they’re not just “flat” engines, and how Porsche and Subaru kept a 120-year-old design alive in some of today’s quickest cars.

Toyota, Mazda and Subaru are not giving up on internal combustion yet. The Japanese auto giants are forging ahead with the development of new internal combustion engines, which the automakers say are ...