GM unveils new hybrid engine the HCCI

General Motors unveiled their new homogenous charge compression ignition engine (HCCI) that will eventually be used to power its lineup of hybrid and plug-in vehicles. In the HCCI engine the air and fuel mixture is compressed to ignite rather than using a spark. When combined with other advanced technologies, the HCCI engine provides up to 15% better fuel economy.

"We're not fully set up for plug-in electric vehicles or fuel cell vehicles. Until we get the infrastructure in place, we have to have a variety of solutions available. There will be some cities that can accommodate these new technologies, but for the rest of the public, we don't want to leave them stranded," she explained.