tirewheelguide
Head-to-head Updated

Michelin Primacy MXM4 vs Pirelli P Zero Nero All Season Run Flat — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 1 + 0 road tests and 10 + 37 owner reviews. How we score

Primacy MXM4 leads, 64–60 Narrow edge

Check price on Amazon · Primacy MXM4 or P Zero Nero All Season Run Flat on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 75

    Dry

    Primacy MXM4 +11
    64
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score) · 1 / – tests87≈ 66 (est.)
    Reviews found online5763

    Primacy MXM4: 60% × 86.7 + 40% × 56.7 = 75

    P Zero Nero All Season Run Flat: 60% × 65.7 (est.) + 40% × 62.6 = 64

    No road tests of dry for P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 58

    Wet

    P Zero Nero All Season Run Flat +6
    64
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score) · 1 / – tests56≈ 65 (est.)
    Reviews found online6162

    Primacy MXM4: 60% × 56.1 + 40% × 61.1 = 58

    P Zero Nero All Season Run Flat: 60% × 65.2 (est.) + 40% × 61.5 = 64

    No road tests of wet for P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 56

    Snow

    P Zero Nero All Season Run Flat +4
    60
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 62 (est.)≈ 65 (est.)
    Reviews found online4754

    Primacy MXM4: 60% × 62.3 (est.) + 40% × 47 = 56

    P Zero Nero All Season Run Flat: 60% × 64.6 (est.) + 40% × 53.8 = 60

    No road tests of snow for Primacy MXM4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

    No road tests of snow for P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 60

    Comfort

    Primacy MXM4 +6
    54
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score) · 1 / – tests64≈ 64 (est.)
    Reviews found online5339

    Primacy MXM4: 60% × 63.9 + 40% × 53.1 = 60

    P Zero Nero All Season Run Flat: 60% × 63.8 (est.) + 40% × 38.5 = 54

    No road tests of comfort for P Zero Nero All Season Run Flat. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 73

    Noise

    Primacy MXM4 +16
    57
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score) · 1 / – tests82≈ 67 (est.)
    Reviews found online6042

    Primacy MXM4: 60% × 81.5 + 40% × 59.6 = 73

    P Zero Nero All Season Run Flat: 60% × 67.3 (est.) + 40% × 41.7 = 57

    No road tests of noise for P Zero Nero All Season Run Flat. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 63

    Treadwear

    Primacy MXM4 +7
    56
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Professional tests (TWG score)≈ 64 (est.)≈ 61 (est.)
    Reviews found online6150

    Primacy MXM4: 60% × 64.3 (est.) + 40% × 61.3 = 63

    P Zero Nero All Season Run Flat: 60% × 60.8 (est.) + 40% × 49.9 = 56

    No road tests of treadwear for Primacy MXM4. 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 P Zero Nero All Season Run Flat. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  7. 54

    Handling (owners)

    Primacy MXM4 +7
    47
    Why this score
    SourcePrimacy MXM4P Zero Nero All Season Run Flat
    Reviews found online5447
Scores at a glance
CategoryMichelin Primacy MXM4Pirelli P Zero Nero All Season Run Flat
Relative Score 64 60
Dry 75 64
Wet 58 64
Snow 56 60
Comfort 60 54
Noise 73 57
Treadwear 63 56
Handling (owners) 54 47

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.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

Primacy MXM4

P Zero Nero All Season Run Flat

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Primacy MXM4

Pros

  • Exceptional ride comfort and vibration dampening
  • Strong tread life and durability
  • High fuel efficiency

Cons

  • Mediocre dry grip and handling precision
  • Noticeable understeer when cornering
  • Soft sidewalls that lack steering feedback
All owner themes in the Primacy MXM4 review

Tire B P Zero Nero All Season Run Flat

Not enough owner reviews yet to extract themes.

Specs side by side

Attribute A · Michelin Primacy MXM4 B · Pirelli P Zero Nero All Season Run Flat
CategoryAll SeasonAll-Season tire
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover

Which one should you actually buy?

Michelin Primacy MXM4

Pirelli P Zero Nero All Season Run Flat

Narrow edge: Michelin Primacy MXM4 — better noise, dry and treadwear. Pick the Pirelli P Zero Nero All Season Run Flat if wet and snow matter most to you. Michelin Primacy MXM4 rests on little evidence so far (1 test, 10 reviews), so read this result as provisional.

Pick tire A You want a quieter cabin

Michelin Primacy MXM4 scores 73 vs 57 on noise.

Pick tire A You want the most grip on dry roads

Michelin Primacy MXM4 scores 75 vs 64 on dry.

Pick tire A You want the longest tread life

Michelin Primacy MXM4 scores 63 vs 56 on treadwear.

Pick tire A You enjoy sharp, responsive handling

Michelin Primacy MXM4 scores 54 vs 47 on handling.

Tire A · Michelin Primacy MXM4
Check price on Amazon
Tire B · Pirelli P Zero Nero All Season Run Flat
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Primacy MXM4 or P Zero Nero All Season Run Flat?

Which is better in the wet, Primacy MXM4 or P Zero Nero All Season Run Flat?

Pirelli P Zero Nero All Season Run Flat, 64 vs 58 on our wet score.

Which grips better on dry roads, Primacy MXM4 or P Zero Nero All Season Run Flat?

Michelin Primacy MXM4, 75 vs 64 on our dry score.

Which is better in snow, Primacy MXM4 or P Zero Nero All Season Run Flat?

Pirelli P Zero Nero All Season Run Flat, 60 vs 56 on our snow score.

Which is quieter, Primacy MXM4 or P Zero Nero All Season Run Flat?

Michelin Primacy MXM4, 73 vs 57 on our noise score.

Which is more comfortable, Primacy MXM4 or P Zero Nero All Season Run Flat?

Michelin Primacy MXM4, 60 vs 54 on our comfort score.

Which lasts longer, Primacy MXM4 or P Zero Nero All Season Run Flat?

Michelin Primacy MXM4, 63 vs 56 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