The GM Small Gasoline Engine (SGE) is a family of small-displacement, inline three- and four-cylinder gasoline engines ranging from 1.0 L to 1.5 L, developed by Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor (MG), Shanghai GM (SGM), and the Pan-Asia Technical Automotive Center (PATAC).

[1] The new global family is designed to improve fuel economy, performance, and emissions, while reducing noise and vibrations.

To achieve this, it features a lightweight design and advanced technologies like gasoline direct injection, turbocharging, variable-length intake manifolds, and alternative fuel compatibility.

[2] To reduce noise, vibration, and harshness (NVH) levels, the direct injection fuel rail mounts to the cylinder head and valve cover via bushings that isolate the loud ticking noise that injector pintles make.

Other silencing measures include a bed-plate cylinder block that increases stiffness and a stiffened aluminum front cam cover.

[2] To reduce mass, the engines are compact in all directions, made almost entirely of aluminum, and feature composite intake manifolds.

Assembly is in Shanghai (China), Changwon (South Korea), Toluca (Mexico), Spring Hill (Tennessee), and Flint (Michigan).

Hardware enhancements include a higher-pressure fuel system (35 MPa, previously 20Pa), enhanced piston design with PVD coating, and precise intake phaser positioning which optimize efficiency and contribute to overall performance.