@xXM3HM3TXx is a Turkish hacker and apart of the notorious hacking group Turkishajan. The hacker announced the leak via Twitter, you can view the tweet below.
Renault Argentina Hacked ! 37.000 account, http://t.co/N7fIFiTa http://t.co/L4TvFHcj @EduardKovacs @Cyber_War_News @Zer0Security #hack #news
— xXM3HM3TXx (@xXM3HM3TXx) January 24, 2013
The site that fell victim is a Argentinean domain of the car company, Renault (www.renault.com.ar). The leak was over 37,000 accounts, which was uploaded on Dropbox in a .rar format.
Renault S.A. is a French multinational vehicle manufacturer established in 1899. The company produces a range of cars and vans, and in the past, trucks, tractors, tanks, buses/coaches and autorail vehicles and is known all over the world.
Otherwise, the site was left untouched other than a redirection to a ZoneH mirror.
You can view the redirection here: http://www.renault.com.ar/rrhh/verOferta.do?id=173