The 195/60R15 ZE512s on the Benz have been great in the rain. Oily pavement is a problem, but oily pavement/painted lines/etc. are always troublesome in the wet, with any tire. Overall they're very nearly as good as the Fuzion ZRi I had on the Contour, and they're better than the Hakkapelliita (sp)RSi tires I had for the winter - which weren't bad in the wet at all.
The Mastercraps that came on it - horrible. I threw them away at almost full tread because they were unsafe in the wet.
