High mileage, low emissions: GM revisits sparkless compression ignition engines

GM has debuted their modern take on the sparkless HCCI engine with this Vauxhall Vectra and Saturn Aura.

Article Summary

August 27, 2007 General Motors has eliminated the spark from the engine cycle in a bold and challenging effort to produce a powerplant that delivers the fuel efficiency of a diesel with the low emissions of a petrol motor. The company has released two concept cars that use Homogenous Charge Compression Ignition (HCCI) technology to burn leaner and cleaner at lower temperatures and deliver up to 15% higher fuel economy.

« Back to High mileage, low emissions: GM revisits sparkless compression ignition engines