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 + 0 road tests and 13,381 + 11 owner reviews. How we score
Primacy 4 is ahead, 81–69
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Tests 84 · 23 tests Owners 77 · 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 68 · 11 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 21 / – tests | 86 | ≈ 69 (est.) |
| Reviews found online | 77 | 71 |
Primacy 4: 60% × 85.8 + 40% × 77.2 = 82
Open Country A/T plus: 60% × 69.1 (est.) + 40% × 70.5 = 70
No road tests of dry for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 22 / – tests | 86 | ≈ 70 (est.) |
| Reviews found online | 80 | 70 |
Primacy 4: 60% × 86.1 + 40% × 79.7 = 84
Open Country A/T plus: 60% × 70.3 (est.) + 40% × 69.9 = 70
No road tests of wet for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 5 / – tests | 77 | ≈ 69 (est.) |
| Reviews found online | 76 | 67 |
Primacy 4: 40% × 76.6 + 60% × 76.4 = 76
Open Country A/T plus: 40% × 68.7 (est.) + 60% × 66.9 = 68
No road tests of comfort for Open Country A/T plus. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 15 / – tests | 74 | – |
| Reviews found online | ≈ 67 (est.) | – |
Primacy 4: 60% × 73.7 + 40% × 66.6 (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 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 85 | ≈ 65 (est.) |
| Reviews found online | 74 | 62 |
Primacy 4: 60% × 85 + 40% × 74.3 = 81
Open Country A/T plus: 60% × 64.7 (est.) + 40% × 62 = 64
No road tests of treadwear for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Reviews found online | 76 | 71 |
| Source | Primacy 4 | Open Country A/T plus |
|---|---|---|
| Professional tests (TWG score) · 15 / – tests | 93 | – |
| Category | Michelin Primacy 4 | Toyo Open Country A/T plus |
|---|---|---|
| Relative Score | 81 | 69 |
| Dry | 82 | 70 |
| Wet | 84 | 70 |
| Comfort | 76 | 68 |
| Noise | 71 | – |
| Treadwear | 81 | 64 |
| Handling (owners) | 76 | 71 |
| Efficiency | 93 | – |
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
Open Country A/T plus
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.
“Gomme alternative a Primacy 4 Buongiorno, ho una Peugeot 208 del 2020 con delle Michelin Primacy 4 205/45 R 17 88 V, le ho da 4 anni, circa 20000km all’anno tranne quest’anno che non le ho sostituite con le invernali e che quindi dovrei portarle ad usura completa con il prossimo “giro” delle gomme per altri 20000km. In totale arriverò a quasi 100000km, quindi super ammortizzate e le consiglierei sempre anche per la tenuta. Visto che entro fine estate pensavo di sostituirle tutte e quattro, vorrei capire se ci fossero delle alternative un più economiche ma altrettanto valide (un cambio gomme al momento mi costa circa €650-700). Read more”
“Michelin Primacy 4 in Snow Alright, I have some pretty fresh Primacy 4 tires that came on my 2022. I live in Minnesota and don't commute much in winter but do make some shorter trips in a metro area. What is the likelihood that I'm going to want/need different tires for winter? I thought about getting a set of Crossclimate tires and just using them year round but it seems like such a waste to not use up these nice Primacy 4 tires. It probably won't be very cost effective to un-mount and mount every year. Let me have it. Read more”
“Am at Saifees, Mumbai. One of my Primacy 4 got punctured at an angle, so is wasted. The tread depth on these 4 year old, 41350 km run is just less than 4mm, so due for replacement after another 5-10k (3mm depth). Saifee tells me Primacy 5 may come at year end. Some tyres willl be manufactured in India (unconfirmed, but usually Saifee knows better) , but can't predict which ones. Meanwhile I've taken an Apollo Alnac in very good condition for Rs.1500/- and will change all tyres together to Primacy 5.”
Based on 44 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Michelin Primacy 4 | B · Toyo Open Country A/T plus |
|---|---|---|
| Category | Summer | All-Terrain tire |
| Vehicle type | Passenger Car / Crossover | SUV and 4x4 |
| Sizes available | 57 | 54 |
| Rim diameters | 15″ – 20″ | 15″ – 21″ |
| Sizes in common | 3 | 3 |
Michelin Primacy 4
Toyo Open Country A/T plus
Winner: Michelin Primacy 4 — better treadwear, wet and dry. It leads or ties in every category we score. Toyo Open Country A/T plus rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional.
Michelin Primacy 4 scores 81 vs 64 on treadwear.
Michelin Primacy 4 scores 84 vs 70 on wet.
Michelin Primacy 4 scores 82 vs 70 on dry.
Michelin Primacy 4 scores 76 vs 68 on comfort.
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Michelin Primacy 4, 84 vs 70 on our wet score.
Michelin Primacy 4, 82 vs 70 on our dry score.
Michelin Primacy 4, 76 vs 68 on our comfort score.
Michelin Primacy 4, 81 vs 64 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
