All eyes have been on the Tokyo and LA Auto Shows this week, but China has been enjoying its own car gathering at the annual Guangzhou Motor Show. Nothing particularly exciting has been revealed here, however Infiniti has introduced a new powerplant for its flagship Q50 that has piqued our interest. The Japanese carmaker has added a 2.0-liter turbocharged gasoline engine to its portfolio that includes a 3.7-liter gasoline unit, a 3.5-liter hybrid and an upcoming 2.2-liter turbo-diesel four cylinder.

The turbo-diesel is a result of Infiniti's recent collaboration agreement with Daimler. Also sourced from Mercedes-Benz, but with "Infiniti's brand characteristics," the new turbo-four utilizes direct injection with precise Piezo injectors to generate 211 hp and 236 lb-ft of torque. Chinese customers will be the first to option the new gasoline variant in spring 2014 before being rolled out in other markets. Over the next five years, Infiniti plans to increase its vehicle lineup by 60 percent and double the number of powertrains. Long wheelbase versions of the Q50 and QX50 represent the start of that expansion. Specifically designed for Chinese customers, production is slated to start next year.