Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 23 + 1 road tests and 13,443 + 1 owner reviews. How we score
Primacy 4 is ahead, 80–73
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Tests 84 · 23 tests Owners 77 · 13,443 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 75 · 1 test Owners 73 · 1 review
Best test result: #1 of 6 in 2023 APAC Tyre Test (dry braking)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 21 / 1 tests | 86 | 78 |
| Reviews found online | 76 | 73 |
Primacy 4: 60% × 85.9 + 40% × 75.5 = 82
Primacy 4 ST: 60% × 78.1 + 40% × 72.9 = 76
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 22 / 1 tests | 86 | 73 |
| Reviews found online | 80 | 76 |
Primacy 4: 60% × 85.6 + 40% × 79.5 = 83
Primacy 4 ST: 60% × 73.4 + 40% × 76.3 = 75
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 5 / 1 tests | 75 | 71 |
| Reviews found online | 76 | 69 |
Primacy 4: 40% × 75.2 + 60% × 75.9 = 76
Primacy 4 ST: 40% × 70.7 + 60% × 68.5 = 69
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 15 / 1 tests | 73 | 73 |
| Reviews found online | ≈ 66 (est.) | ≈ 66 (est.) |
Primacy 4: 60% × 73.4 + 40% × 66.3 (est.) = 71
Primacy 4 ST: 60% × 72.6 + 40% × 66.3 (est.) = 70
No owner ratings of noise for Primacy 4 or Primacy 4 ST. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 85 | ≈ 68 (est.) |
| Reviews found online | 76 | 71 |
Primacy 4: 60% × 84.8 + 40% × 75.5 = 81
Primacy 4 ST: 60% × 68.1 (est.) + 40% × 70.8 = 69
No road tests of treadwear for Primacy 4 ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Reviews found online | 76 | 71 |
| Source | Primacy 4 | Primacy 4 ST |
|---|---|---|
| Professional tests (TWG score) · 15 / 1 tests | 93 | 75 |
| Category | Michelin Primacy 4 | Michelin Primacy 4 ST |
|---|---|---|
| Relative Score | 80 | 73 |
| Dry | 82 | 76 |
| Wet | 83 | 75 |
| Comfort | 76 | 69 |
| Noise | 71 | 70 |
| Treadwear | 81 | 69 |
| Handling (owners) | 76 | 71 |
| Efficiency | 93 | 75 |
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.
Primacy 4
Primacy 4 ST
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
| Discipline | Category | Primacy 4 | Primacy 4 ST | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 99% #3/8 · 2022 Motor Crossover Summer Tire Test R17 | 100% #1/6 · 2023 APAC Tyre Test | – | Different tests |
| Dry Handling | Dry | 99% #5/8 · 2022 Motor Crossover Summer Tire Test R17 | 98% #2/6 · 2023 APAC Tyre Test | – | Different tests |
| Dry Handling (tester's mark) | Dry | 63% #12/20 · 2020 Auto Zeitung Summer Tyre Test | 100% #1/6 · 2023 APAC Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 99% #2/8 · 2022 Motor Crossover Summer Tire Test R17 | 99% #3/6 · 2023 APAC Tyre Test | – | Different tests |
| Wet Braking | Wet | 96% #2/8 · 2022 Motor Crossover Summer Tire Test R17 | 96% #3/6 · 2023 APAC Tyre Test | – | Different tests |
| Wet Handling | Wet | 98% #4/8 · 2022 Motor Crossover Summer Tire Test R17 | 99% #2/6 · 2023 APAC Tyre Test | – | Different tests |
| Wet Handling (tester's mark) | Wet | 93% #2/20 · 2020 Auto Zeitung Summer Tyre Test | 100% #1/6 · 2023 APAC Tyre Test | – | Different tests |
| Comfort (tester's mark) | Comfort | 92% #4/8 · 2022 Motor Crossover Summer Tire Test R17 | 98% #2/6 · 2023 APAC Tyre Test | – | Different tests |
| Noise | Noise | 98% #4/21 · 2022 Auto Bild Summer Tyre Test | 100% #2/6 · 2023 APAC Tyre Test | – | Different tests |
| Noise (tester's mark) | Noise | 60% #7/8 · 2021 ViBilagare Summer Tyre Test | 100% #1/6 · 2023 APAC Tyre Test | – | Different tests |
| Rolling Resistance | Efficiency | 83% #2/21 · 2022 Auto Bild Summer Tyre Test | 100% #1/6 · 2023 APAC Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #4/6 2025 Wybór Kierowców Summer Tire Test R16 | #1/6 2023 APAC Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
The Michelin Primacy 4 is generally praised for its comfortable ride, low road noise, and strong braking and safety in both dry and wet conditions. While many users report excellent tread longevity across tens of thousands of kilometers, some note faster wear on heavier electric vehicles or rough surfaces. It is viewed as a premium touring tire that is unsuitable for winter conditions, prompting some drivers to weigh its high price against newer models like the Primacy 5 or cheaper alternatives.
“Yokohama es la que va pero fijate que ya este año salieron las nuevas advan v61, esas geolandar g058 son modelo viejo. Las primacy 4 son modelo viejo y te las cobran como si fuesen oro. Bridgestone y continental tambien las vi a precio de oro. Pirelli son medio pelo, no son malas pero son ruidosas, ya que estás en el baile podes ir por algo mejor, como las yokohama.”
“I'll have to remember to get some E's. That aside, the primacy 4 fitted to the mokka only have 6.5 mm, if that, from new so perhaps they were just an older name. Gaz”
“Both our Polestar2 (new) and 2016 Leaf (Jap import) arrived with Primacy 4s on them. The FWD Polestar needed fronts replaced at ~35k km and being 245/45 R19s Primacy were too pricey so went with Kumho Ecsta PS71 equivalents for a lot cheaper and negligible difference in performance. The rears on the Polestar are still going strong at 45k km and look like at least 60k km will be likely. We also fitted Kumhos on our previous Leaf and were very satisfied with performance and life.”
Based on 43 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Michelin Primacy 4 | B · Michelin Primacy 4 ST |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 57 | 7 |
| Rim diameters | 15″ – 20″ | 16″ – 20″ |
| UTQG | 340 A A | — |
| Sizes in common | 6 | 6 |
Michelin Primacy 4
Michelin Primacy 4 ST
Winner: Michelin Primacy 4 — better efficiency, treadwear and wet. It leads or ties in every category we score. Michelin Primacy 4 ST rests on little evidence so far (1 test, 1 review), so read this result as provisional.
Michelin Primacy 4 scores 93 vs 75 on efficiency.
Michelin Primacy 4 scores 81 vs 69 on treadwear.
Michelin Primacy 4 scores 83 vs 75 on wet.
Michelin Primacy 4 scores 76 vs 69 on comfort.
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Michelin Primacy 4, 83 vs 75 on our wet score.
Michelin Primacy 4, 82 vs 76 on our dry score.
Neither, by our numbers: 71 vs 70 on the noise score, within 3 points.
Michelin Primacy 4, 76 vs 69 on our comfort score.
Michelin Primacy 4, 81 vs 69 on our treadwear score.
Michelin Primacy 4, 93 vs 75 on our efficiency 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
