All testing of teams’ 2017/18 season designs has so far taken place in private.
The most significant change for the next campaign will be race power being raised from 170kw to 180kw, with it otherwise a year of gradual development prior to the major revamp for single-car races in 2018/19.
Mahindra team principal Dilbagh Gill said: “We’re excited to bring Nick and the M4Electro to Goodwood in a bid to set the fastest open-wheel electric record on the hillclimb.
“We are always looking to push the boundaries as a team and we couldn’t think of a better way to introduce the season four challenger to fans and automotive enthusiasts alike than at the Goodwood Festival of Speed.”
The remaining Formula E teams are not expected to reveal their 2017/18 cars until official pre-season testing at Valencia in October.
Mahindra’s announcement added that the new M4Electro will be the first of its cars to run with a single gear. Its current Formula E racer has three gears.
The Indian manufacturer took its maiden series win with Felix Rosenqvist in the last round in Berlin.