Tests – · none yet Owners 50 · 52 reviews
Pirelli P Zero Run Flat vs Toyo Proxes CF1 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 52 + 46 owner reviews. How we score
Proxes CF1 is ahead, 69–58
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Tests – · none yet Owners 68 · 46 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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63
Dry
Proxes CF1 +669Why this score
Source P Zero Run Flat Proxes CF1 Professional tests (TWG score) ≈ 65 (est.) ≈ 69 (est.) Reviews found online 60 70 P Zero Run Flat: 60% × 64.6 (est.) + 40% × 59.9 = 63
Proxes CF1: 60% × 68.6 (est.) + 40% × 70 = 69
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 0.40).
No road tests of dry for Proxes CF1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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61
Wet
Proxes CF1 +1172Why this score
Source P Zero Run Flat Proxes CF1 Professional tests (TWG score) ≈ 63 (est.) ≈ 71 (est.) Reviews found online 58 72 P Zero Run Flat: 60% × 63.3 (est.) + 40% × 58.2 = 61
Proxes CF1: 60% × 71.1 (est.) + 40% × 72.2 = 72
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 0.56).
No road tests of wet for Proxes CF1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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56
Comfort
Proxes CF1 +1369Why this score
Source P Zero Run Flat Proxes CF1 Professional tests (TWG score) ≈ 65 (est.) ≈ 69 (est.) Reviews found online 43 69 P Zero Run Flat: 60% × 64.6 (est.) + 40% × 42.7 = 56
Proxes CF1: 60% × 69 (est.) + 40% × 68.5 = 69
No road tests of comfort for P Zero Run Flat or Proxes CF1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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60
Noise
No comparison–Why this score
Source P Zero Run Flat Proxes CF1 Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 48 – P Zero Run Flat: 60% × 67.3 (est.) + 40% × 48.4 = 60
No road tests of noise for P Zero Run Flat. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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47
Treadwear
Proxes CF1 +1562Why this score
Source P Zero Run Flat Proxes CF1 Professional tests (TWG score) ≈ 56 (est.) ≈ 64 (est.) Reviews found online 33 60 P Zero Run Flat: 60% × 55.6 (est.) + 40% × 33 = 47
Proxes CF1: 60% × 63.8 (est.) + 40% × 59.7 = 62
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 0.31).
No road tests of treadwear for Proxes CF1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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55
Handling (owners)
Proxes CF1 +1469Why this score
Source P Zero Run Flat Proxes CF1 Reviews found online 55 69
Scores at a glance
| Category | Pirelli P Zero Run Flat | Toyo Proxes CF1 |
|---|---|---|
| Relative Score | 58 | 69 |
| Dry | 63 | 69 |
| Wet | 61 | 72 |
| Comfort | 56 | 69 |
| Noise | 60 | – |
| Treadwear | 47 | 62 |
| Handling (owners) | 55 | 69 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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.
P Zero Run Flat
Proxes CF1
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A P Zero Run Flat
Pros
- Exceptional dry grip and precise, telepathic steering feedback
- Better ride comfort and compliance than competing run-flat tires
- Good initial value and professional purchase/installation experience
Cons
- Noticeably diminished grip and unsettling behavior on wet roads or standing water
- Rapid tread wear and short lifespan, particularly on rear axles
- Stiff sidewalls prone to bubbling, cuts, and blowouts upon pothole impact
Tire B Proxes CF1
Pros
- Exceptional dry and wet grip for the price point
- High levels of ride comfort and low road noise
- Predictable handling and responsive steering feedback
Cons
- Rapid tread wear and short lifespan
- Performance degradation as the tread depth decreases
- Potential for handling instability if mixed with non-directional tires
Specs side by side
| Attribute | A · Pirelli P Zero Run Flat | B · Toyo Proxes CF1 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
Pirelli P Zero Run Flat
Toyo Proxes CF1
Winner: Toyo Proxes CF1 — better treadwear, handling and comfort. It leads or ties in every category we score.
Toyo Proxes CF1 scores 62 vs 47 on treadwear.
Toyo Proxes CF1 scores 69 vs 55 on handling.
Toyo Proxes CF1 scores 69 vs 56 on comfort.
Toyo Proxes CF1 scores 72 vs 61 on wet.
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P Zero Run Flat or Proxes CF1?
Which is better in the wet, P Zero Run Flat or Proxes CF1?
Toyo Proxes CF1, 72 vs 61 on our wet score.
Which grips better on dry roads, P Zero Run Flat or Proxes CF1?
Toyo Proxes CF1, 69 vs 63 on our dry score.
Which is more comfortable, P Zero Run Flat or Proxes CF1?
Toyo Proxes CF1, 69 vs 56 on our comfort score.
Which lasts longer, P Zero Run Flat or Proxes CF1?
Toyo Proxes CF1, 62 vs 47 on our treadwear score.
How do we compare tires?
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