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Head-to-head Updated

Bridgestone Turanza ER33 vs Michelin Primacy 4+ — 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 0 + 10 road tests and 25 + 39 owner reviews. How we score

Primacy 4+ is ahead, 77–52

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Michelin Primacy 4+
Tire BMichelin

Primacy 4+

Summer

± 4

Tests 85 · 10 tests Owners 70 · 39 reviews

Best test result: #1 of 16 in 2024 ADAC Summer Tyre Test (abrasion)

Category by category

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

  1. 51

    Dry

    Primacy 4+ +27
    78
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 9 tests≈ 57 (est.)82
    Reviews found online4171

    Turanza ER33: 60% × 56.8 (est.) + 40% × 41.3 = 51

    Primacy 4+: 60% × 82.3 + 40% × 70.6 = 78

    No road tests of dry for Turanza ER33. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 49

    Wet

    Primacy 4+ +30
    79
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 9 tests≈ 54 (est.)83
    Reviews found online4174

    Turanza ER33: 60% × 54.2 (est.) + 40% × 40.8 = 49

    Primacy 4+: 60% × 82.6 + 40% × 73.8 = 79

    No road tests of wet for Turanza ER33. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 45

    Snow

    No comparison
    –
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score)≈ 56 (est.)–
    Reviews found online30–

    Turanza ER33: 60% × 55.5 (est.) + 40% × 30 = 45

    No road tests of snow for Turanza ER33. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 46

    Comfort

    Primacy 4+ +25
    71
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 1 tests≈ 63 (est.)73
    Reviews found online3569

    Turanza ER33: 40% × 62.9 (est.) + 60% × 34.8 = 46

    Primacy 4+: 40% × 73.3 + 60% × 69 = 71

    No road tests of comfort for Turanza ER33. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 58

    Noise

    Primacy 4+ +15
    73
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 7 tests≈ 67 (est.)77
    Reviews found online45≈ 67 (est.)

    Turanza ER33: 60% × 66.6 (est.) + 40% × 44.7 = 58

    Primacy 4+: 60% × 76.7 + 40% × 66.6 (est.) = 73

    No road tests of noise for Turanza ER33. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

    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.

  6. 62

    Treadwear

    Primacy 4+ +23
    85
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 4 tests≈ 64 (est.)95
    Reviews found online6069

    Turanza ER33: 60% × 64 (est.) + 40% × 60.1 = 62

    Primacy 4+: 60% × 95.3 + 40% × 68.9 = 85

    No road tests of treadwear for Turanza ER33. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 41

    Handling (owners)

    Primacy 4+ +24
    65
    Why this score
    SourceTuranza ER33Primacy 4+
    Reviews found online4165
  8. –

    Efficiency

    No comparison
    78
    Why this score
    SourceTuranza ER33Primacy 4+
    Professional tests (TWG score) · – / 8 tests–78
Scores at a glance
CategoryBridgestone Turanza ER33Michelin Primacy 4+
Relative Score 52 77
Dry 51 78
Wet 49 79
Snow 45 –
Comfort 46 71
Noise 58 73
Treadwear 62 85
Handling (owners) 41 65
Efficiency – 78

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

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Recomputed
Headline score
± 8

Turanza ER33

± 4

Primacy 4+

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 Turanza ER33

Pros

  • Exceptional tread life and durability
  • Reliable dry-weather grip and handling
  • Stiff sidewall construction

Cons

  • High levels of cabin and road noise
  • Poor wet-weather performance and hydroplaning resistance
  • Mediocre ride comfort and impact absorption
All owner themes in the Turanza ER33 review

Tire B Primacy 4+

Pros

  • Excellent ride comfort and a smooth, compliant 'limousine-like' feel over bumps
  • Strong and reliable grip in both wet and dry conditions, inspiring confidence
  • Noticeable improvement in quietness and traction compared to predecessor tires or factory options

Cons

  • Loud road noise and a harsh drone on rough or coarse asphalt surfaces
  • Soft sidewalls can reduce steering agility and initial responsiveness compared to dedicated sport tires
  • High premium price point relative to competitors
All owner themes in the Primacy 4+ review

Specs side by side

Attribute A · Bridgestone Turanza ER33 B · Michelin Primacy 4+
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available1266
Rim diameters16″ – 19″16″ – 21″
Tread depth10/32″—
UTQG140 A A—
SidewallBlackwall—
Max pressure44 psi—
Sizes in common1010

Which one should you actually buy?

Bridgestone Turanza ER33

Michelin Primacy 4+

Winner: Michelin Primacy 4+ — better wet, dry and comfort. It leads or ties in every category we score.

Pick tire B Your priority is wet-weather safety

Michelin Primacy 4+ scores 79 vs 49 on wet.

Pick tire B You want the most grip on dry roads

Michelin Primacy 4+ scores 78 vs 51 on dry.

Pick tire B You want the most comfortable ride

Michelin Primacy 4+ scores 71 vs 46 on comfort.

Pick tire B You enjoy sharp, responsive handling

Michelin Primacy 4+ scores 65 vs 41 on handling.

Tire A · Bridgestone Turanza ER33
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Tire B · Michelin Primacy 4+
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Turanza ER33 or Primacy 4+?

Which is better in the wet, Turanza ER33 or Primacy 4+?

Michelin Primacy 4+, 79 vs 49 on our wet score.

Which grips better on dry roads, Turanza ER33 or Primacy 4+?

Michelin Primacy 4+, 78 vs 51 on our dry score.

Which is quieter, Turanza ER33 or Primacy 4+?

Michelin Primacy 4+, 73 vs 58 on our noise score.

Which is more comfortable, Turanza ER33 or Primacy 4+?

Michelin Primacy 4+, 71 vs 46 on our comfort score.

Which lasts longer, Turanza ER33 or Primacy 4+?

Michelin Primacy 4+, 85 vs 62 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