To create the 13B from the 12A design, Mazda lengthened the motor and beefed up its rotors, which now measured 3.1 inches in thickness. Doing so strengthened the rotating piston and helped it to ...

Mazda began 1920 as Toyo Kogyo Co., Ltd, a manufacturer of corks. Toyo didn't make its first vehicle until 11 years later, a ...