Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 23 + 0 road tests and 13,381 + 14 owner reviews. How we score
Primacy 4 is ahead, 79–72
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests 83 · 23 tests Owners 74 · 13,381 reviews
Best test result: #1 of 20 in 2020 Auto Zeitung Summer Tyre Test (wet braking)
“Well my answer is none of the above. You choose, they are all a lottery imo. I just bought some Michelin Primacy 4 for mine today. Size 215/55 R18”
Tests – · none yet Owners 73 · 14 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 21 / – tests | 85 | ≈ 71 (est.) |
| Reviews found online | 74 | 75 |
Primacy 4: 60% × 85.3 + 40% × 73.9 = 81
Proxes ST: 60% × 70.5 (est.) + 40% × 74.7 = 72
No road tests of dry for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 22 / – tests | 85 | ≈ 74 (est.) |
| Reviews found online | 76 | 77 |
Primacy 4: 60% × 84.9 + 40% × 76.2 = 81
Proxes ST: 60% × 73.6 (est.) + 40% × 76.6 = 75
No road tests of wet for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) | – | ≈ 68 (est.) |
| Reviews found online | – | 64 |
Proxes ST: 60% × 67.8 (est.) + 40% × 63.6 = 66
No road tests of snow for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 5 / – tests | 76 | ≈ 70 (est.) |
| Reviews found online | 74 | 74 |
Primacy 4: 60% × 76.5 + 40% × 74.2 = 76
Proxes ST: 60% × 70 (est.) + 40% × 74.1 = 72
No road tests of comfort for Proxes ST. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 15 / – tests | 74 | – |
| Reviews found online | ≈ 67 (est.) | – |
Primacy 4: 60% × 73.6 + 40% × 67.3 (est.) = 71
No owner ratings of noise for Primacy 4. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 82 | ≈ 67 (est.) |
| Reviews found online | 71 | 72 |
Primacy 4: 60% × 81.7 + 40% × 70.6 = 77
Proxes ST: 60% × 67.5 (est.) + 40% × 71.7 = 69
No road tests of treadwear for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
| Source | Primacy 4 | Proxes ST |
|---|---|---|
| Reviews found online | 74 | 71 |
| Category | Michelin Primacy 4 | Toyo Proxes ST |
|---|---|---|
| Relative Score | 79 | 72 |
| Dry | 81 | 72 |
| Wet | 81 | 75 |
| Snow | – | 66 |
| Comfort | 76 | 72 |
| Noise | 71 | – |
| Treadwear | 77 | 69 |
| Handling (owners) | 74 | 71 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Primacy 4
Proxes ST
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community sentiment towards the Michelin Primacy 4 is generally positive, with drivers frequently praising its quiet ride, comfort, and dependable wet and dry braking performance. Several owners note impressive longevity reaching over 50,000 to 70,000 km, though some EV and SUV drivers report accelerated wear and fragile sidewalls over rough terrain. It is commonly viewed as a premium touring tire that commands high prices compared to competitors.
“I have used Michelin tires before but recently I already have used Nankang tires. I compared Michelin and Nankang tires after testing. It was quite a pleasant surprise that the Nankang AS1 was nearly on par with the Michelin Primacy 4 in braking distance. Both tires performed exceptionally well, with the Primacy 4 only stopping slightly 3 meters shorter than the AS1.”
“Rapid wear on Michelin Primacy 4, 2017 Forester 2017 Forester in Mexico City, where there are lots of potholes and speed bumps and a LOT of rain. I got a set of Michelin Primacy 4+ tires at Costco three years ago and they've got about 30,000 kms -- 16,000 miles on them. Tread is down to about 3.5/32nds (in the middle, slightly less at the sides). The original Geolandars lasted very far beyond that in the same conditions. I'm getting a bit antsy at the tread depth. Wonder if anybody else has seen such rapid wear.”
“Well my answer is none of the above. You choose, they are all a lottery imo. I just bought some Michelin Primacy 4 for mine today. Size 215/55 R18”
Based on 44 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Michelin Primacy 4 | B · Toyo Proxes ST |
|---|---|---|
| Category | Summer | All Season |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| Sizes available | 57 | 1 |
| Rim diameters | 15″ – 20″ | 19″ |
Michelin Primacy 4
Toyo Proxes ST
Winner: Michelin Primacy 4 — better dry, treadwear and wet. It leads or ties in every category we score. Toyo Proxes ST rests on little evidence so far (0 tests, 14 reviews), so read this result as provisional.
Michelin Primacy 4 scores 81 vs 72 on dry.
Michelin Primacy 4 scores 77 vs 69 on treadwear.
Michelin Primacy 4 scores 81 vs 75 on wet.
Michelin Primacy 4 scores 76 vs 72 on comfort.
TireWheelGuide may earn a commission from purchases made through these links.
Michelin Primacy 4, 81 vs 75 on our wet score.
Michelin Primacy 4, 81 vs 72 on our dry score.
Michelin Primacy 4, 76 vs 72 on our comfort score.
Michelin Primacy 4, 77 vs 69 on our treadwear score.
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology
