Mazda SKYACTIV-X: Reinventing the Gasoline Engine
Mazda's SKYACTIV-X engine. Note the belt-driven supercharger.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. A big plastic shroud hides several components of the engine, such as the supercharged and the fuel lines.

Mazda's SKYACTIV-X engine. Note the belt-driven supercharger.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. We recorded a 15.5% improvement in fuel economy with the manual transmission, and a 13.7% improvement with the automatic.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. These prototypes were only camouflaged with a matt paint job.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. Improved fuel economy and more engine torque.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. Ligthly trimmed cockpit, typical of a prototype in its development phase.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine. This prototypes is equipped with an electronically controlled "brake-by-wire" system. The red button serves to deactivate it in case of emergency so the car can be stopped conventionally with its hydraulic brakes.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine.

Ichiro Hirose, powertrain development manager at Mazda.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine.

The Mazda3 Sport prototype equipped with the SKYACTIV-X engine.

Mazda's R&D centre in Frankfurt, Germany.

Mazda's R&D centre in Frankfurt, Germany.

New and improved platform that will serve as a base for the next-generation Mazda3.

New and improved platform that will serve as a base for the next-generation Mazda3.

New and improved platform that will serve as a base for the next-generation Mazda3.