Formula 1® - The Official F1® Website
The long-term agreement will see Mercedes-Benz supply the Silverstone-based team with a complete power unit (engine plus Energy Recovery System), transmission and all associated ancillary systems when Formula One racing adopts 1.6-litre V6 turbo engines in 2014.
mclaren to honda is looking more likelyhttp://paddocktalk.com/news/html/story-218100.html
McLaren's long-term relationship with Mercedes is in doubt, amid rumours the famous British team could pair with returning engine supplier Honda from 2015.