Both were for P rated tires, in P275/55R20 size. So, I'd assume there'd be some compromise in design going with the Nokian over the Michelin.
I don’t think Nokian “compromises” in design, but they do design to different performance objectives.
Their “all weather” tires, like the WR G4, are much better in snow and on ice than any other “all season” tire.
I bought those exact tires for my wife’s Volvo V70XC and my daughter’s XC90. Interestingly, my wife’s Volvo eats up tires at the furious rate. Michelin, Continental, all of the brands, lasted tops, 30,000 miles on her car. It has 307,000 on it now, so we have been through many, many sets of tires.
The WRG4 are lasting longer than any of the other tires we’ve tried. I did not expect this result. The WRG4RXL tires, and have a higher load rating, than the typical tires in her size, P215/65R16, and I wonder if perhaps they are a bit stronger and more durable as a result.
The WRG3 that I had on my Tundra in P275/55R20, were great in snow, a really good “all weather” tires, but they wore out quickly (30,000 miles) on the truck. I replaced them with the Michelin LTX, which are holding up much better. At 40,000 miles, they are still about 9/32”.
I am considering a set of Nokian for the Tundra because the Michelins are at 6 years old, and I have a weird, slight pulsation under braking, that followed the tires from front to back when I rotated them.
I would like to put new tires on the truck to see if I can fix this annoying problem, and because it does see snow on occasion, the new tires would need to have good snow performance.
For my daughter’s XC90, which is in Boston, it’s the Nokian WRG4 for three seasons, and Continental Viking Contact 7 in the winter. She is a big skier - and sees a lot of snowy roads - so, she gets a dedicates set of wheels with dedicated winter tires.
They would have been the Nokian Hakkapellitta if I could have sourced them two years ago in VB, but the Contis have been excellent in the snow (yes, I’ve gone skiing with her in her car).