The new model is priced from £32,995 and joins the current e-Berlingo line up as the range topper.
In the longer 7-seat XL format it's some 35cm longer than 5-seat models.
Previously the longer body was available only on Feel trim versions priced from £30,495 after the Government plug-in grant.
The Flair XTR XL e-Berlingo has a range of up to 174 miles and can be recharged to 80 percent capacity from rapid charging stations in 30 minutes.
Citroën has recently made its MPV range electric-only and, compared to the shorter wheelbase models, the 7-seat e-Berlingo has 500 litres more load space with the rear seats folded and a load length of more than three metres.
Flair XTR trim comes with Airbump exterior styling, an 8.0-inch touchscreen, Bluetooth connectivity, and a DAB radio with Android Auto and Apple CarPlay.
All versions also come with a range of safety and driver assistance systems as part of the Citroën’s Safety Pack which includes active lane keeping assist, active safety brake, cruise control and speed limiter, speed limit recognition and recommendation and driver attention alert.
They're also fitted with a 10.0-inch digital driver's instrument display, remote temperature pre-conditioning, an Electrochrome rear view mirror, satellite navigation, reversing camera, Intelligent Beam Headlights, an opening tailgate window and dual zone climate control.