What is the Fiat SGE/TwinAir engine?
The SGE (Small Gas Engine) is a modular engine system built on the single cylinder displacement of 450cc. In the two cylinder, 900cc version, it can come as naturally aspirated or turbocharged or as a CNG natural gas version. Besides being modular, which improves manufacturing ease, the SGE concept is to downsize the engine, both physically and by displacement, but maintain the torque of a larger engine. The smaller size will benefit packaging and fuel efficiency. Starting in 2010, Fiat has began calling the SGE the TwinAir in Fiat applications. Look to see the TwinAir showing up in the European 500 in the near future. You can read more about the SGE/TwinAir engine here.
