Splash on the outside mirrors

Hello, do you have any problems with the exterior mirrors here? With my 9-5 Aero Kombi Bj 2001 every freeway ride in the wet (especially at night) becomes an adventure and makes lane changes not only a test of courage, but also a great sense of lightness: the water runs outwards at the lower edge of the mirror. The drops then tear off about 5 cm from the outer edge of the mirror and are torn by the vertebra behind the mirrors into tiny droplets and sprayed on the mirror glass. I don’t need to explain what I have experienced with no other car. Almost all the mirrors, whether Mercedes, BMW, Audi, Ford, VW etc. have a cracking edge for the current below, that the drops are not sprayed on the mirror glass, like the spray on the rear window, and so on. Here the mirrors are completely removed from the current, that they do not get any further drops when driving. Only at the Saab the lower surface is nicely arched, that it is only too understandable even laymen, that an unfavourable vortex has to arise here. Did the aerodynamician totally penned here and leave the form only to the designer? Apparently already. Because at least in the model-kept variant the mirrors look different. Other current, below plan with Abrißka nte. Is that still the way to spray here? Saab is at least covered in this respect and comments on my problem only with finished text blocks, that they make the greatest effort in the development and bla bla bla… Who has noticed this with the mirrors? Maybe we can achieve more with a collective inquiry to Saab-Germany? André