I am looking for tires summer tires under my Nissan Terrano II and I came across tires called GT Radial. Have you heard of them? I read on an Icelandic web page that these tires received some kind of citation (translation could be doubt full) from GM as one of their top suppliers. I use Cooper Discoverer MS in the winter, probably the best tire on an icy road I have tried, but tight grooves easily fill up with snow in extreme circumstances.
Do you use tacked tires in winter? Most of my countrymen do but they play hard on bare tarmac in thaw. I would love to know your opinion. These GT Radials are Chinese made and cost much less money than any others. Could be all right for the summer. But then there's this GM thing.