888-577-0454 They're big on mpg. They're big on fuel efficiency. We're talking about the lineup of 2014 Fusion models. The Fusion Hybrid and the Fusion Energi Plug-In Hybrid are each powered by a combination electric motor and gas-sipping 2.0L Atkinson-cycle I-4 gasoline engine, and both feature the SmartGauge with EcoGuide that provides information to help you drive more efficiently.