PARIS, Dec 6 (Reuters) - Renault's long-standing alliance partners Nissan and Mitsubishi confirmed plans to invest in the French car maker's electric vehicle unit Ampere and use it to develop EVs for the European market, the companies said on Wednesday.

Nissan and Mitsubishi confirmed they would invest respectively up to 600 million euros ($647.46 million) and 200 million euros in Ampere, which has been carved out from the rest of Renault and is due for a public listing next year.

Nissan will become "a strategic investor" in Ampere, Makoto Uchida, CEO of the Japanese car marker told reporters, adding the company may use the EV unit's software and connectivity innovations in other markets outside Europe.

"Developing electric vehicles all over the world alone would be very challenging," he said.

Ampere will develop and manufacture an electric version of the compact Nissan Micra for the European market and a medium-sized electric SUV for Mitsubishi.

Renault CEO Luca de Meo said Ampere will cut the costs for the Micra for Nissan by 50%.

The alliance partners also confirmed their joint projects in Latin America and India.

($1 = 0.9267 euros) (Reporting by Gilles Guillaume, additional reporting by Nick Carey, writing by Piotr Lipinski, editing by Silvia Aloisi and Bernadette Baum)