Tires OEM BMW or Kumho

The best option is the Kumho Ecsta PA31. That's what I run in the cool months.

Owned two sets of kuhmo LX Platinum excellent budget tire very quiet got 45k miles with a few rotations still didn't hit wear bar when changed. I will say not good at all in any sort of snow.

Not low grip but sticky in yet durable and fairly quick is the Kumho Ecsta V730.

Shit for we weather tough, to be fair

We went with Kumho Crugen tires when it was time to replace the stock Yokohama Geolanders. Its probably been 20K miles and they have been great. Quiet and the car handles the same.

I just put on Kumho RoadVenture AT and have had no complaints. CO just got hit with a pretty good snow storm (as least 6 inches) last week and they did great driving in it.

The Kumho is a far superior tire from a respected manufacturer based in South Korea. The Radar might look like the better deal up front, but it will likely wear fast and not perform anywhere near as good as the Kumho tires.

I have the 19” khumo creugan and I had 14k miles when I swapped to winters in November, now I have another 2k on them this spring, and I we am a couple 32nds from the ware bars in the tread. So prabably on track for 20k and they will be gone.

Nothing wrong with the Kumho tires but those are Z rated and ultra high performance tires. They won’t last long and will ride like an ox cart. But they will grip very well.

I also have a bit of personal experience with Kumho - Wintercraft winter rubber. I don't like it honestly...

As others mentioned, run-flats are more suspectable to sidewall damage. They're also heavier and noisier. Also, you may have a wider selection of tires if you go with non-runflat.