Audi are using a flywheel hybrid system and I think it might spin down in the time it's in the pits. Might be wrong on that, but I remember there was a mention on Midweek Motorsport some time back about why Audi don't leave the pits on hybrid power. The reason they can only use their hybrid system in restricted places compared to the Toyota is because their car counts as 4wd because the hybrid system drives the front wheels. The Toyota conforms to slightly different rules because it's a true 2wd because their supercapacitor system drives the rear wheels, same as the engine.
Anyone in for the long haul tonight?