The SRT05e is designed to get twice the range of its predecessor, the first-generation Spark Renault SRT01, which has been in use for the series' first four seasons. As the Verge notes, drivers currently have to switch vehicles mid-race in order to have enough charge to make it over the finish line, but bigger batteries currently in development are expected to make that headache a thing of the past. According to Spark, the SRT05e compensates for a heavier battery by dropping some weight from the chassis and getting more efficient with the aerodynamics and the drivetrain.
Motorsport also reports that individual teams were shown "even more radical" versions of the concept, so the final look may get a few more tweaks before hitting the track. Still, we can expect to see the vehicles sporting logos from BMW, Faraday Future, Mercedes-Benz and others when they roll out in the 2018-2019 season.