The Fusion Energi will likely be eligible for a federal tax credit of around $4,000.

Now that the standard Fusion and Fusion Hybrid are in dealerships, Ford's mid-size sedan lineup is a single model away from completion - only the Fusion Energi has yet to launch. However, the blue oval has just released pricing information for the Energi, signaling that the plug-in hybrid's on-sale date is near.

The Fusion Energi will start from $39,495 for the entry-level SE Luxury trim level, while the ritzier Titanium model will command $40,995. All Fusion Energis will be eligible for a federal tax credit, which will likely shave about $4,000 from the bottom line.

Still, the Energi will be significantly more expensive than the conventional Fusion Hybrid, which starts at $27,995. The two models use essentially the same powertrain, a 188-horsepower setup composed of a 2.0-liter four-cylinder that teams with an electric motor and a continuously variable transmission.

The Energi sets itself apart with an electric-only driving range of around 20 miles, though the larger battery pack needed to provide that capacity cuts down on trunk space and also saps fuel efficiency when driving in hybrid mode. Still, with the average work commute totaling about 20 miles each way, Fusion Energi drivers could potentially travel to the office using just electricity, then recharge and make it back home without burning any gas.

The Fusion Energi will begin arriving in showrooms in January.