What is the difference between a Geo Metro EFI and xfi?

The Geo Metro EFI (Electronic Fuel Injection) and xFi (extra Fuel Injection) differ primarily in their fuel efficiency and engine tuning. The xFi variant is designed for optimal fuel economy, featuring a more efficient engine setup and lighter components, which allows it to achieve better miles per gallon compared to the standard EFI model. Additionally, the xFi typically has a more streamlined design and may include specific modifications aimed at reducing drag and improving overall aerodynamics.