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 13,399 + 52 owner reviews. How we score
Primacy 4 is ahead, 81–56
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Tests 84 · 23 tests Owners 77 · 13,399 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 48 · 52 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| Professional tests (TWG score) · 21 / – tests | 86 | ≈ 63 (est.) |
| Reviews found online | 77 | 57 |
Primacy 4: 60% × 85.8 + 40% × 77.2 = 82
P Zero Run Flat: 60% × 63.4 (est.) + 40% × 56.9 = 61
No road tests of dry for P Zero Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| Professional tests (TWG score) · 22 / – tests | 86 | ≈ 63 (est.) |
| Reviews found online | 80 | 57 |
Primacy 4: 60% × 86.1 + 40% × 79.6 = 83
P Zero Run Flat: 60% × 63.1 (est.) + 40% × 56.9 = 61
No road tests of wet for P Zero Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| Professional tests (TWG score) · 5 / – tests | 77 | ≈ 64 (est.) |
| Reviews found online | 76 | 40 |
Primacy 4: 40% × 76.6 + 60% × 76.4 = 76
P Zero Run Flat: 40% × 63.8 (est.) + 60% × 40 = 50
No road tests of comfort for P Zero Run Flat. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| 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 | P Zero Run Flat |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 85 | ≈ 53 (est.) |
| Reviews found online | 74 | 29 |
Primacy 4: 60% × 85 + 40% × 74.1 = 81
P Zero Run Flat: 60% × 53.2 (est.) + 40% × 29.4 = 44
No road tests of treadwear for P Zero Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| Reviews found online | 76 | 54 |
| Source | Primacy 4 | P Zero Run Flat |
|---|---|---|
| Professional tests (TWG score) · 15 / – tests | 93 | – |
| Category | Michelin Primacy 4 | Pirelli P Zero Run Flat |
|---|---|---|
| Relative Score | 81 | 56 |
| Dry | 82 | 61 |
| Wet | 83 | 61 |
| Comfort | 76 | 50 |
| Noise | 71 | – |
| Treadwear | 81 | 44 |
| Handling (owners) | 76 | 54 |
| 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
P Zero Run Flat
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 on my BMW E87 118d Primacy 4 since 2020 and I think I have covered about 30k km with them and I can certainly cover another 5-10k km with them but the DOT is 2019 so I am changing them next year. I thought I would buy new ones this year, but I gave up because I will soon put on winter ones, so I will buy new summer ones next year. I am delighted with the Primacy 4, excellent and safe in the rain and in the dry, especially in the rain, I literally drive as if it were dry, that's how safe I feel, and I honestly drive a little faster and more aggressively. It is 205 55 R16 and the tires are made in Spain.”
“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.”
“Had a shop install two new Michelin Primacy 4 in the front of my W124 yesterday. On the way back home i checked the pressure and the right one was a little on the low side. Drove the car today and after a few kms of city driving i noticed it was steering itself to the right once i was out of the stop and go traffic. Got out of the car and the tire was almost flat. I put 2.7 bar in it at the first station but noticed the sidewall is now damaged and there's a buldge... How is this possible? It is wet and i can hear the sound of air coming out of the tire but can't identify where it comes from. If the rim is the problem, why did they install the tire without noticing me first? If they don't admit their fault and blame it on the rim, i'm going to have to buy a new tire...”
Based on 44 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Michelin Primacy 4 | B · Pirelli P Zero Run Flat |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 57 | — |
| Rim diameters | 15″ – 20″ | — |
Michelin Primacy 4
Pirelli P Zero Run Flat
Winner: Michelin Primacy 4 — better treadwear, comfort and wet. It leads or ties in every category we score.
Michelin Primacy 4 scores 81 vs 44 on treadwear.
Michelin Primacy 4 scores 76 vs 50 on comfort.
Michelin Primacy 4 scores 83 vs 61 on wet.
Michelin Primacy 4 scores 76 vs 54 on handling.
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Michelin Primacy 4, 83 vs 61 on our wet score.
Michelin Primacy 4, 82 vs 61 on our dry score.
Michelin Primacy 4, 76 vs 50 on our comfort score.
Michelin Primacy 4, 81 vs 44 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
