Pirelli Cinturato 225/40R19 XL 93Y WeatherActive Tire

Let me start by saying my wife's GLC63 runs the scorpion version of these tires already and we've been nothing but impressed with the Weatheractive design. I figured the Cintuaro version would be likely just as good and I can happily report they are. Despite being mounted to 19" wheels, they're fairly smooth even over bumps which is great compared to the factory Michelin Pilot Sport 4's. They're a little more audible but I expected that given the tread design. It's really not obtrusive, just noticeable if you're paying attention to it. Dry grip is great for what they are, definitely not a performance tire but they still hold their own through corners. The winter grip is what's got my attention though. I've had a mix of slushy snow, dry snow, icy mix, and sub zero wet sticky snow over the past couple weeks. These haven't skipped a beat once. Seriously, the grip is great and communicate the conditions well through the wheel. I purposely pushed on them one night to see if I could break them loose intentionally; shocker, they broke loose, but it was a very linear type of grip loss. That's exceptional IMO because it gives you plenty of time to correct and recover as needed. TL;DR version? Just buy them. Seriously. You'll struggle to find another tire that can handle just about anything the weather can throw at it like this.