Head-to-head Updated

Michelin Primacy 4 ST vs Michelin Primacy 5 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 14 road tests and 1 + 2,775 owner reviews. How we score

Primacy 5 is ahead, 82–73

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Michelin Primacy 4 ST
Tire AMichelin

Primacy 4 ST

Summer

± 7Provisional

Tests 75 · 1 test Owners 73 · 1 review

Best test result: #1 of 6 in 2023 APAC Tyre Test (dry braking)

Michelin Primacy 5
Tire BMichelin

Primacy 5

Summer

± 4

Tests 86 · 14 tests Owners 83 · 2,775 reviews

Best test result: #1 of 16 in 2026 ADAC Summer Tyre Test (abrasion)

“So apparently Michelin Primacy 5 has been released in Australia - not in all sizes. My tyre size 235/40R19 won't be available until April 2026 - omg lol. I told them to take that size out of the website. Talk about slow rollout considering its been out in Asia for a few months.”

Category by category

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

  1. 76

    Dry

    Primacy 5 +1
    77
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · 1 / 12 tests7876
    Reviews found online7379

    Primacy 4 ST: 60% × 78.1 + 40% × 72.9 = 76

    Primacy 5: 60% × 76.3 + 40% × 79.2 = 77

  2. 75

    Wet

    Primacy 5 +9
    84
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · 1 / 13 tests7383
    Reviews found online7686

    Primacy 4 ST: 60% × 73.4 + 40% × 76.3 = 75

    Primacy 5: 60% × 83.4 + 40% × 86.2 = 84

  3. 69

    Comfort

    Primacy 5 +17
    86
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · 1 / 6 tests7196
    Reviews found online6979

    Primacy 4 ST: 40% × 70.7 + 60% × 68.5 = 69

    Primacy 5: 40% × 95.6 + 60% × 79.3 = 86

  4. 70

    Noise

    Primacy 5 +2
    72
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · 1 / 10 tests7375
    Reviews found online≈ 66 (est.)≈ 66 (est.)

    Primacy 4 ST: 60% × 72.6 + 40% × 66.3 (est.) = 70

    Primacy 5: 60% × 75.2 + 40% × 66.3 (est.) = 72

    No owner ratings of noise for Primacy 4 ST or Primacy 5. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  5. 69

    Treadwear

    Primacy 5 +25
    94
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · – / 4 tests≈ 68 (est.)99
    Reviews found online7186

    Primacy 4 ST: 60% × 68.1 (est.) + 40% × 70.8 = 69

    Primacy 5: 60% × 98.7 + 40% × 85.8 = 94

    No road tests of treadwear for Primacy 4 ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  6. 71

    Handling (owners)

    Primacy 5 +8
    79
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Reviews found online7179
  7. 75

    Efficiency

    Primacy 5 +17
    92
    Why this score
    SourcePrimacy 4 STPrimacy 5
    Professional tests (TWG score) · 1 / 11 tests7592
Scores at a glance
Michelin Primacy 4 ST vs Michelin Primacy 5: scores by category (0–100)
CategoryMichelin Primacy 4 STMichelin Primacy 5
Relative Score 73 82
Dry 76 77
Wet 75 84
Comfort 69 86
Noise 70 72
Treadwear 69 94
Handling (owners) 71 79
Efficiency 75 92

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
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost
Recomputed
Headline score
± 7

Primacy 4 ST

± 4

Primacy 5

The professional test results behind the scores

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.

DisciplineCategoryPrimacy 4 STPrimacy 5ΔHead-to-head
Dry Braking Dry 100% #1/6 · 2023 APAC Tyre Test 90% #5/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Dry Handling Dry 98% #2/6 · 2023 APAC Tyre Test 98% #8/10 · 2026 Auto Zeitung 18 Inch Summer Tyre Test – Different tests
Dry Handling (tester's mark) Dry 100% #1/6 · 2023 APAC Tyre Test 97% #3/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Straight Aquaplaning Wet 99% #3/6 · 2023 APAC Tyre Test 96% #4/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Wet Braking Wet 96% #3/6 · 2023 APAC Tyre Test 97% #3/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Wet Handling Wet 99% #2/6 · 2023 APAC Tyre Test 96% #6/10 · 2026 Auto Zeitung 18 Inch Summer Tyre Test – Different tests
Wet Handling (tester's mark) Wet 100% #1/6 · 2023 APAC Tyre Test 93% #4/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Comfort (tester's mark) Comfort 98% #2/6 · 2023 APAC Tyre Test 98% #2/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Noise Noise 100% #2/6 · 2023 APAC Tyre Test 99% #4/10 · 2026 Auto Zeitung 18 Inch Summer Tyre Test – Different tests
Noise (tester's mark) Noise 100% #1/6 · 2023 APAC Tyre Test 95% #3/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Rolling Resistance Efficiency 100% #1/6 · 2023 APAC Tyre Test 100% #1/6 · 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests
Also published by the testers (not in the score)
Overall Ranking Overall #1/6 2023 APAC Tyre Test #4/6 2026 Die Reifentester Summer Tyre Test - 235/55 R18 – Different tests

Pros, cons & observations

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

Tire A Primacy 4 ST

Pros

  • Exceptional durability and tread life
  • High levels of wet and dry grip
  • Superior ride comfort

Cons

  • Slightly higher noise levels compared to the segment-leading quiet tire (Continental CC6)
  • Fuel efficiency is competitive but not class-leading
All owner themes in the Primacy 4 ST review

Tire B Primacy 5

Pros

  • Strong wet performance: many reviewers cite confident grip, good aquaplaning resistance and predictable braking in heavy rain and standing water.
  • Quiet, comfortable ride: many describe low noise and good absorption of bumps and potholes, often as a clear improvement over previous tyres.
  • Low rolling resistance and fuel economy: several report lower fuel consumption (for example about 0.5 L/100 km less, or 1 L less) and improved EV efficiency.

Cons

  • Road noise on rough or coarse asphalt: several reviewers report droning, resonance or unbearable noise. Some say it was louder than their previous Continental, Giti or Falken tyres.
  • Soft, vague or less direct handling: reviewers report slow steering response, a squishy feel, sidewall buckling or squealing in hard cornering, and a less sporty feel than Pilot Sport or Continental tyres.
  • Traction problems in some cases: a few reviewers report wheelspin or slipping when pulling away, including in the dry and on a diesel Golf.
All owner themes in the Primacy 5 review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Michelin Primacy 4 ST

We haven't collected enough community discussion about this tire yet.

Tire B

Michelin Primacy 5

Positive

Community sentiment for the Michelin Primacy 5 is broadly positive, with drivers consistently praising its low cabin noise, smooth ride comfort, and stable wet performance. However, some users report mixed experiences, noting surprisingly harsh ride quality, faster-than-expected tread wear, or limited initial size availability in certain markets.

Top themes
#low cabin noise#ride comfort and smoothness#tread life and wear#wet grip performance#Primacy 5 vs Pilot Sport 5#comparison with Continental PC7

Based on 63 community posts

Specs side by side

Attribute A · Michelin Primacy 4 ST B · Michelin Primacy 5
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available786
Rim diameters16″ – 20″16″ – 22″
Sizes in common66

Which one should you actually buy?

Michelin Primacy 4 ST

Michelin Primacy 5

Winner: Michelin Primacy 5 — better treadwear, comfort and efficiency. It leads or ties in every category we score. Michelin Primacy 4 ST rests on little evidence so far (1 test, 1 review), so read this result as provisional.

Pick tire B You want the longest tread life

Michelin Primacy 5 scores 94 vs 69 on treadwear.

Pick tire B You want the most comfortable ride

Michelin Primacy 5 scores 86 vs 69 on comfort.

Pick tire B You want lower fuel or energy use

Michelin Primacy 5 scores 92 vs 75 on efficiency.

Pick tire B Your priority is wet-weather safety

Michelin Primacy 5 scores 84 vs 75 on wet.

Tire A · Michelin Primacy 4 ST
Tire B · Michelin Primacy 5

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Primacy 4 ST or Primacy 5?

Which is better in the wet, Primacy 4 ST or Primacy 5?

Michelin Primacy 5, 84 vs 75 on our wet score.

Which grips better on dry roads, Primacy 4 ST or Primacy 5?

Neither, by our numbers: 76 vs 77 on the dry score, within 3 points.

Which is quieter, Primacy 4 ST or Primacy 5?

Neither, by our numbers: 70 vs 72 on the noise score, within 3 points.

Which is more comfortable, Primacy 4 ST or Primacy 5?

Michelin Primacy 5, 86 vs 69 on our comfort score.

Which lasts longer, Primacy 4 ST or Primacy 5?

Michelin Primacy 5, 94 vs 69 on our treadwear score.

Which rolls more easily, Primacy 4 ST or Primacy 5?

Michelin Primacy 5, 92 vs 75 on our efficiency 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