http://news.bbc.co.uk/sport2/hi/moto...ne/9409120.stm
Red Bull's Renault engines will be renamed Infiniti this season in a move that will boost the world champion team's budget by at least Ł7m.

Infiniti - the premium brand of Japan's Nissan, part-owned by Renault - is using F1 to boost its global profile.

The engines will be the same, branding aside, but the plan means Red Bull will get their engines for free.