Which team will use mechanical flybrid?

[Scania]

is it Renault?
if not, which will?

[dumbdave]

I would put money on Renault, Flybrid Systems produce a mechanical flywheel KERS designed for F1 & the company was started & run by ex-Renault engine designers (made redundant with the engine freeze) so they are likely to have ties there, which to my mind means the are most likely working with Renault.

[WhiteBlue]

Williams will use Flywheel. Renault will probably do a Magneti Marelli eectronic system.

[Scania]

Williams will use Flywheel. Renault will probably do a Magneti Marelli eectronic system.

Williams will use Flywheel > elect system