Don't forget that previously Mercedes were hot blowing by a lot more than 10%
That's trypue, but going from 68 cold blown to 10% hot blown is a Hell of a heat change that hass to be dissipated. Nothing can be done this weekend. Maybe mercedes engines cars will be able to reduce radiator size and gain a little aero and lower ballast. Where Renault cars might have to increase radiator size to just cope with 10% cold blown let alone hot blown. I bet they are glad it's England and cool temps.