so does the hot air that we have agreed that escapes not come from the engine or rad? I know you are saying that it is pressure difference but if the vents lead to pressure difference which somehow lets hot air out through the vents (or anywhere) then can we agree that having vents may lead to some heat loss? I,e. In the pic the vents look to be doing something so if hot air air is escaping it Must (by the laws of physics) be taking some energy away with it? If warm air is escaping then it is escaping.

If allowing some warm air to escape somehow allows the inter cooler and rad to be more efficient then air vents must be beneficial? Did ford add them just to sell more cars and then release pics of warm air escaping just to sell more cars for us to argue that warm air does escape but make no difference? I am confused?