O2 (UK) BT subsidiaries: Esat Digifone in Ireland, Viag Interkom in Germany and Telfort Mobiel in the Netherlands. The rebranding was supported by a European advertising campaign, which began on 16 April 2002, across all four countries, at a cost of £130 million. The main launch campaign ran from 18 June and was developed by Vallance Carruthers Coleman Priest, working alongside brand consultancy Lambie-Nairn, creators of the "O2" brand identity. In March 2005, mmO2 restructured its shares and the company was relisted as O2 plc. On 30 November 2005, O2 agreed to a takeover by Telefónica, a Spanish telecommunications company, for £17.7
O2 Racing Technology O2 Racing Technology O2 Racing Technology (also known as Genoa Racing) was an American auto racing team owned by Mark Olson that competed in the Indy Lights series. The team ran the No. 36 and 63 entries in the Indy Lights series for 2011 with Peter Dempsey and Mikaël Grenier. They were suspended from Indy Lights along with owner Mark Olson until the end of 2012 over issues with the David Hobbs 100 at the Milwaukee Mile and the team withdrawing. IndyCar accused the team and owner of four Indy Lights rule book violations because of their interference with the