Of course all companies tune their devices to look good in the tests. This is nothing new and appears in all industries. The silly Mhz race with processors or the same shit with graphic processing units. Even on food labels they state calories, sugar etc. based on funky units, like meal size or portion. And we all know that cars use more fuel than advertised. True VW has really gone too far with it, but all the other are also cheats. And if there is a hell they will all go there.