Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 3 + 1 road tests and 3,492 + 42 owner reviews. How we score
Too close to call: P Zero 61, HTR Z III 62.
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Tests 74 · 3 tests Owners 47 · 3,492 reviews
Best test result: #1 of 20 in 2019 Auto Bild Summer Tyre Test (dry handling)
“New rubber for the road wheels Pirelli P-Zero RS TLR 30mm, measuring 33mm on 25mm inner rim width. Rides like a dream, but the center thread is narrow, so I'd not feel confident if I raced anything with tighter cornering.”
Tests – · 1 test Owners 56 · 42 reviews
Best test result: #6 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 80 | ≈ 68 (est.) |
| Reviews found online | 62 | 67 |
P Zero: 60% × 79.6 + 40% × 61.5 = 72
HTR Z III: 60% × 67.6 (est.) + 40% × 67.1 = 67
No road tests of dry for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 3 / – tests | 81 | ≈ 65 (est.) |
| Reviews found online | 55 | 60 |
P Zero: 60% × 81.1 + 40% × 54.9 = 71
HTR Z III: 60% × 65 (est.) + 40% × 60.2 = 63
No road tests of wet for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) | ≈ 60 (est.) | ≈ 53 (est.) |
| Reviews found online | 37 | 14 |
P Zero: 60% × 59.8 (est.) + 40% × 36.6 = 51
HTR Z III: 60% × 52.7 (est.) + 40% × 14 = 37
No road tests of snow for P Zero. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 70 | ≈ 68 (est.) |
| Reviews found online | 46 | 64 |
P Zero: 40% × 69.8 + 60% × 46.2 = 56
HTR Z III: 40% × 67.9 (est.) + 60% × 64.3 = 66
No road tests of comfort for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 61 | ≈ 66 (est.) |
| Reviews found online | 53 | 62 |
P Zero: 60% × 60.7 + 40% × 53 = 58
HTR Z III: 60% × 66.3 (est.) + 40% × 62.1 = 65
No road tests of noise for HTR Z III. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 65 | 70 |
| Reviews found online | 29 | 59 |
P Zero: 60% × 65.3 + 40% × 28.6 = 51
HTR Z III: 60% × 70.2 + 40% × 59.1 = 66
| Source | P Zero | HTR Z III |
|---|---|---|
| Reviews found online | 56 | 65 |
| Source | P Zero | HTR Z III |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 59 | – |
| Category | Pirelli P Zero | Sumitomo HTR Z III |
|---|---|---|
| Relative Score | 61 | 62 |
| Dry | 72 | 67 |
| Wet | 71 | 63 |
| Snow | 51 | 37 |
| Comfort | 56 | 66 |
| Noise | 58 | 65 |
| Treadwear | 51 | 66 |
| Handling (owners) | 56 | 65 |
| Efficiency | 59 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. 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.
P Zero
HTR Z III
Only categories both tires have data for count toward the headline score.
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 | P Zero | HTR Z III | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #25/49 2020 Tyre Market Overview Braking Test | #17/22 2022 Consumer Reports Ultra High Performance Summer Tires | – | 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
Opinion on the P Zero line is split. Its bicycle tires are mostly praised for speed, grip, comfort and good test results, but they draw frequent complaints about very tight, hard-to-mount beads and some puncture or durability issues. Car P Zero tires get strong marks for dry grip, steering response and the newer AS Plus 3 and PZ5 versions. They are also criticised for fast wear, poor cold or wet grip in some experiences, and sidewall bubbles. Many commenters note the confusingly large number of P Zero variants.
“New rubber for the road wheels Pirelli P-Zero RS TLR 30mm, measuring 33mm on 25mm inner rim width. Rides like a dream, but the center thread is narrow, so I'd not feel confident if I raced anything with tighter cornering.”
“I put a set of Pirelli P Zero AS3's on my 2019 Mazda 3. After driving about 1,500 miles, I can say that I love them. The steering has a very direct feel - it turns in almost immediately. Needless to say the grip is fantastic. ... and that is only with outside air temps in the 50's. I can't wait to see how they perform when it gets to be in the 70's and they can get some heat in them. One of the reasons I was attracted to this tire is that Pirelli claims to have incorporated technology that helps the tires maintain the same level of performance as they wear over time. I have been frustrated in the past to see how tires loose their grip long before the treadwear gets low. Also, it didn't hurt that Pirelli had a $100 instant rebate!”
“hard to answer I switched out the stock wheels and tires for the GT PP wheels and tires when i first bought the car. Compared to the stock GT PP Summer P-zeros i would say the P-zeros have better dry traction while the Sumitomos live up to the All Seasons designation and provide better wet traction/handling but that isn't to say dry traction is bad you can tell it falls into the performance category. Also, you can tell when the Pzeros would get hard in cold weather whereas you don't experience that with the sumitomos. Overall, they are a good relatively inexpensive performance All Season tire with good wear. I would never buy another set of Pzeros considering the cost to benefit comparison. if i may recommend the CONTINENTAL EXTREMECONTACT DW tires which i currently have now they have better wet/dry traction than the p-zeros and not as expensive as them or any higher offerings like the michelins. regardless of what you go with keep an eye out for tirerack.com the prices fluctuate a lot and many times you can get away with a steal also your local discount tire will price match”
Based on 278 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Pirelli P Zero | B · Sumitomo HTR Z III |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 194 | 1 |
| Rim diameters | 17″ – 24″ | 19″ |
| Tread depth | 10/32″ | 10/32″ |
| UTQG | 220 A A | 300 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 50 psi | 50 psi |
Pirelli P Zero
Sumitomo HTR Z III
Too close to call: Pirelli P Zero and Sumitomo HTR Z III are within 2 points overall. Pirelli P Zero is stronger on snow, wet and dry. Sumitomo HTR Z III is stronger on treadwear, comfort and handling.
Sumitomo HTR Z III scores 66 vs 51 on treadwear.
Pirelli P Zero scores 51 vs 37 on snow.
Sumitomo HTR Z III scores 66 vs 56 on comfort.
Sumitomo HTR Z III scores 65 vs 56 on handling.
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Pirelli P Zero, 71 vs 63 on our wet score.
Pirelli P Zero, 72 vs 67 on our dry score.
Pirelli P Zero, 51 vs 37 on our snow score.
Sumitomo HTR Z III, 65 vs 58 on our noise score.
Sumitomo HTR Z III, 66 vs 56 on our comfort score.
Sumitomo HTR Z III, 66 vs 51 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
