Ex-Formula 1 driver Bruno Senna is among the latest group of drivers to express interest in contesting the inaugural Formula E season.
The Brazilian, who switched to sportscars with Aston Martin last year, is one of 16 drivers who have now put themselves forward for seats in the FIA's new all-electric series.
"I'm very excited to be part of the Formula E Drivers' Club as Formula E and electric cars are the path for racing and motoring for a better future," said Senna.
Four-time Champ Car champion and ex-F1 man Sebastien Bourdais has also signed up, along with his current IndyCar rivals Oriol Servia and JR Hildebrand, plus sometime grand prix racers Narain Karthikeyan, Christijan Albers and Franck Montagny.
GP2 driver Daniel Abt completes the latest list released by Formula E.
The initial batch of interested drivers revealed by the championship earlier this month included Sebastien Buemi, Karun Chandhok, Lucas di Grassi, Tonio Liuzzi, Takuma Sato and Marco Andretti.
Although driver signing decisions will remain down to the individual Formula E teams, the series has established its 'Drivers' Club' scheme to draw up a list of potential candidates, all of whom will have early opportunities to test the championship's Spark-Renault car.
Ex-F1 names Super Aguri and Virgin are among the 10 teams committed to the 2014/15 series, alongside IndyCar frontrunner Andretti Autosport, a collaboration between four-time F1 champion Alain Prost and DAMS, and a partnership between sportscar firm Venturi and actor Leonardo DiCaprio.
Formula E's first race will take place in Beijing on September 13 this year.
Formula E Championship - Drivers' Club line-up:
Daniel Abt (GER)
Christijan Albers (NLD)
Marco Andretti (USA)
Sebastien Bourdais (FRA)
Sebastien Buemi (CHE)
Karun Chandhok (IND)
Lucas di Grassi (BRA)
JR Hildebrand (USA)
Ma Qing Hua (CHN)
Narain Karthikeyan (IND)
Vitantonio Liuzzi (ITA)
Franck Montagny (FRA)
Takuma Sato (JPN)
Bruno Senna (BRA)
Oriol Servia (ESP)
Adrien Tambay (FRA)