Petrol engine may match hybrids
# homogeneous charge compression ignition (HCCI) — has been around since the 1970s.
# General Motors show off their latest HCCI prototype car.
# HCCI engine could come close to matching the efficiency of a typical hybrid engine.
via Petrol engine may match hybrids | Review | carsguide.com.au.
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[...] engine could come close to matching the efficiency of a typical hybrid engine.waynechecker.net, waynechecker.net, Oct [...]