to me it looks like that Sauber has aimed for a similar solution as Ferrari, with the forward angled pushrods.
This makes me wonder, if Sauber still produces it´s own gearbox, or has sourced the complete drivetrain engine+gearbox+KERS from Ferrari again.
The did run a complete Ferrari rear in earlier years.
Does somebody know, what the Sauber gearbox situation is?
IMHO, the car looks quite "bulky" in the rear, sidepods and engine cover exit.
Sure they will have there reasoning and ideas behind it, and I wish them well, but it looks a lot less "elegant" compared to the F150.
Especially as far as flow to the beam wing is concerned. Let´s see how it goes.