I have run a set of these Tires on a different car not my 135. I found them to be exceptional in Dry and more than adequate in wet conditions. I do not push any of my cars hard in wet conditions so my experience is limited to just "normal" driving. I've never had a moment with these tires in the wet that made me feel uneasy in anyway about being on the road. They feel planted and have good grip. I've experienced tires that i felt were too dangerous to drive in the wet (such as some Nitto drag radials that made me hold my breath every time i entered a round about or a long loop joining/exiting a highway) but the V601's have always felt "confident". So much so that i am literally getting a set delivered to the house TODAY for my new APEX wheels which will be going into the 135i project
For the price, these tires are hard to beat.