[lkchris]

I think it safe to assume Boxster cooling was thoroughly tested by Porsche.

Good to understand that a sustained high-speed Autobahn run will get the engine hotter than any other sort of use. Basically, it's more fuel burned equals more heat. Not a lot of heat generated idling, but plenty generated at sustained high rpms. Electric fans are lots better than the attached-to-the-water-pump fans of old mericun iron---where the fan runs at idle speed, too. Apples and oranges.