Formula 1 - Honda to supply engines for McLaren in 2015

[mechman600]

Honda confirms F1 return in 2015 as McLaren engine supplier - The Globe and Mail

And here's the interesting bit:

Ito gave two examples of technologies that could be applied from race cars to road cars – regenerative energy from the turbo, which changes the turbo’s rotational energy to electricity, and downsizing the turbo.

Now we just need Toyota to announce something too.