Japanese car manufacturer Toyota Motor Corp. said Feb. 26 that it has developed a new fuel-efficient powertrain that reduces carbon dioxide emissions by 18%.

The new powertrain units will be rolled out in the spring. It includes newly developed continuously variable transmission, a 6-speed manual transmission, a 2.0-liter direct-injection and inline 4-cylinder gasoline engine, a 2.0-liter hybrid system and two new four-wheel-drive systems.

The new units are based on the Toyota New Global Architecture, or TNGA, development framework, which aims to improve fuel efficiency in its cars.

Toyota plans to introduce 17 versions of nine engines, 10 versions of four transmissions and 10 versions of six hybrid systems by the end of 2021.

The company seeks to have 80% of its vehicles sold in Japan, the U.S., Europe and China installed with the TNGA-based powertrain units by 2023.

In 2017, Toyota, which plans to mass produce battery-powered electric vehicles from 2020, sold 1.52 million electric cars globally.