Miran,
If you have the 6 inch wire wheels I would definitely stick with the 195/65 x 15 tyres. The 205/60 x 15 are possibly going to be too large for optimum mounting on the rims.
Andy
PS Yes I have noticed the poor condition of the roads in June , I assumed that was the winter damage from ice, as there are always repairs be made to the road over Praedel Pass . I am driving a large van with 22 kayaks on board so I don't notice it so much.
