GM Joins HCCI Push for Sparkless Ignition

MILFORD, MI – Showcasing its support for the continued development of gasoline engines, General Motors Corp. unveils a pair of prototype vehicles that blend spark-ignition (SI) and compression-ignition (CI) internal combustion technologies.

Known as homogeneous charge compression ignition, or HCCI, the integrated engine concept blends the best attributes of gasoline and diesel mills and is ...