In my experience, if you want to keep that Cadillac composure without the "hum" of a heavy snow tire, you should look at the performance winter category rather than just standard ice tires. Over the years, I've found that the Pirelli Winter Sottozero 3 245/45R18 is the best market match for the CT5 AWD. They usually run about $230 each. Unlike some others, these are designed for high-speed stability and wet grip, so they won't feel mushy or loud when you're cruising on the highway.

If you're watching the budget, the Hankook Winter i*cept evo3 W330 245/45R18 is a solid runner-up at around $185. It’s a great value proposition—serious traction without the premium brand tax. Honestly, for most luxury AWD drivers, the Pirellis offer the best balance of road noise and safety... just don't quote me on the exact mileage you'll get!

TL;DR: Go with Pirelli Winter Sottozero 3 245/45R18 for the best mix of quiet highway cruising and solid snow performance.

Seconding the recommendation above regarding the Continentals! They really are amazing for ride quality. But, I’ve been thinking about your question from a value perspective, especially since winter setups can get pricey. If you want to save some serious cash without sacrificing that Cadillac smooth ride, you should look into the Vredestein Wintrac Pro 245/45R18.

I’ve been testing tires for years, and these are a fantastic mid-range option. Compared to the Michelin X-Ice Snow or Bridgestone Blizzak WS90, the Vredesteins often run $30-$50 cheaper per tire. They’re technically a performance winter tire, so they handle highway speeds much better than the squishy Blizzaks, and honestly, the road noise is almost non-existent!

Also, a pro tip: look for a "square setup" and maybe downsize to 18s if you have 19s now. It’ll save you money on the rubber and give you more sidewall for those hidden potholes. Hope this helps! Good luck!

I had a similar dilemma when I first got my CT5! For your situation, I'd seriously recommend the Continental VikingContact 7 245/45R18. Honestly, they're the sweet spot for highway comfort and technical grip. While the Michelins are great, the Continentals use a unique Nordic compound that stays flexible in extreme cold without that annoying 'hum' on dry pavement. Plus, they're usually a bit cheaper than the Michelins, giving you way better value for the long haul!

Hey! Congrats on the new CT5. I totally get the noise concern. Honestly, I've been running the Michelin X-Ice Snow 245/45R18 on mine and it's been fantastic. Compared to the Bridgestone Blizzak WS90, the Michelins are definitely quieter on the highway. They handle the AWD system perfectly and don't ruin that smooth Cadillac ride. Seriously, I'm super satisfied with them—great balance of grip and comfort! Good luck! ❄️

Respectfully, I'd consider another option if safety in deep slush and ice is your absolute priority. While the Michelins and Continentals mentioned are great for dry highway comfort, I’ve had a different experience when things get truly nasty. From a safety-first perspective, I really think you should look at the Nokian Tyres Hakkapeliitta R5 245/45R18.

Nokian basically invented the winter tire, and their tread tech is unrivaled for icy traction. Honestly, the CT5 AWD system is smart, but it can only do so much if the rubber doesn't bite. These run about $220-$250 a corner, but the peace of mind is worth the premium IMO. They’re surprisingly quiet too, though maybe a tiny bit firmer than the Continentals. If you’re worried about upcoming storms, don't compromise on the grip just for a slightly softer ride. It’s better to have that extra stopping power when a plow hasn't cleared the roads yet! ❄️

Seconding the recommendation above regarding the Continentals! They really are amazing for ride quality. But, I’ve been thinking about your question from a value perspective, especially since winter setups can get pricey. If you want to save some serious cash without sacrificing that Cadillac smooth ride, you should look into the Vredestein Wintrac Pro 245/45R18.

I’ve been testing tires for years, and these are a fantastic mid-range option. Compared to the Michelin X-Ice Snow or Bridgestone Blizzak WS90, the Vredesteins often run $30-$50 cheaper per tire. They’re technically a performance winter tire, so they handle highway speeds much better than the squishy Blizzaks, and honestly, the road noise is almost non-existent!

Also, a pro tip: look for a "square setup" and maybe downsize to 18s if you have 19s now. It’ll save you money on the rubber and give you more sidewall for those hidden potholes. Hope this helps! Good luck!

In my experience, if you want to keep that Cadillac composure without the "hum" of a heavy snow tire, you should look at the performance winter category rather than just standard ice tires. Over the years, I've found that the Pirelli Winter Sottozero 3 245/45R18 is the best market match for the CT5 AWD. They usually run about $230 each. Unlike some others, these are designed for high-speed stability and wet grip, so they won't feel mushy or loud when you're cruising on the highway.

If you're watching the budget, the Hankook Winter i*cept evo3 W330 245/45R18 is a solid runner-up at around $185. It’s a great value proposition—serious traction without the premium brand tax. Honestly, for most luxury AWD drivers, the Pirellis offer the best balance of road noise and safety... just don't quote me on the exact mileage you'll get!

TL;DR: Go with Pirelli Winter Sottozero 3 245/45R18 for the best mix of quiet highway cruising and solid snow performance.