A 1.5-liter, four-cylinder engine with variable valve timing powers the U.S. version of the Toyota Yaris. The 106-horsepower engine produces 103 lb.-ft. of torque and drives the front wheels through either a five-speed manual or a four-speed automatic. With only 106 horsepower, it is unlikely that buyers of the Yaris will be seen at local drag strips but as a commuter car, it could shine.