But seems to me the best hybrid engineers are already working for McLaren and Mercedes Benz. Their KERS system has proven to be the best on the grid so far this season.
Maybe McLaren can recruit Mario Ilien and his team at Ilmor to design something from scratch. Ilien came up with his own KERS system when he designed the F1 Championship-winning Mercedes engines for Mika Hakkinen. The system was banned by the FIA because it would have killed everyone else on the grid.
On the topic of McLaren and Mercedes, are things really that frosty between them? Sure the McMerc SLR was a bit of a missed opportunity. But I mean, neither party is the easiest to work with. Surely they could work together on an expensive and low-volume item such as hybrid together to save each other money.