Ok, scrap everything I said
Its Sauber and Lotus rumoured to be going to Honda. and the engines are between 15 and 23m Euros.
http://www.yallaf1.com/2013/05/13/mclaren-set-for-free-honda-engines-as-of-2015/
Its Sauber and Lotus rumoured to be going to Honda. and the engines are between 15 and 23m Euros.
Honda, however, will surely subsidise its development costs with one or two customer deals, and Sauber and Lotus are thought to have already expressed interest.
...
Auto Motor und Sport said Renault wants to charge its customers between EUR 20 and EUR 23 million per season, while the Mercedes engine will cost 17-19 million.
Ferrari is reportedly offering the cheapest package, with the price tag between EUR 15 and EUR 17 million.
http://www.yallaf1.com/2013/05/13/mclaren-set-for-free-honda-engines-as-of-2015/