Wirehaired vizslas are still a relatively new breed, developed in 1930 and were recognized by the FCI in 1966.
They are very much like the Smooth haired vizslas but more robust and with a harsh wire coat.
Selective breeding is really the key to develop the perfect coat but because of the beauty of the genetics, we still get all kinds of coats for this breed.
Here are 5 different coats that you can see within the breed.