My Kia came with factory-fitted Nexen tyres and they were fine. Also, some new Mercs come with Hankook tyres, so they must be fine as well. /QUOTE]
My last E220 came with Hankooks and they performed and lasted well. I'll admit I was was sceptical....
However my 2018 E220 has Pirellis fitted whilst my daughter's slightly later 2018 A180 has Hankooks. I do have a set of Vredesteins for the E220 in winter though.
I believe that my wife's new GLC is coming with Pirellis.