I didn't know that

[t1grm]

The hybrid recovery system used in the Audi was made by Williams F1

"It was also good weekend for Ferrari’s F1 rivals Williams, whose Hybrid Power division saw their technology help the Audi R18 e-tron Quattro piloted by Andre Lotterer, Benoit Treluyer and Marcel Fassler make history by becoming the first hybrid-powered vehicle to take outright victory at Le Mans."

http://www.formula1.com/news/headlines/2012/6/1346...

[muppetdave]

I must admit I didn't know that the Audi system was Williams until I just saw it on the F1 Slate, but I saw a programme a while back (megafactories or something I think), and the hybrid division at Williams seems a pretty big part of the company.

[DS240]

Porsche using it also I believe. If it is a flywheel it is likely the Williams system.

Healthy cheque to Williams from Audi.

[Vocal Minority]

Jaguar also planning to use the Williams Flywheel system in the C-X75