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Michelin Primacy 4+ vs Vredestein Ultrac Vorti+ — 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 10 + 4 road tests and 39 + 60 owner reviews. How we score

Primacy 4+ leads, 77–73 Narrow edge

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Michelin Primacy 4+
Tire AMichelin

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)

Vredestein Ultrac Vorti+
Tire BVredestein

Ultrac Vorti+

Summer

± 6

Tests 76 · 4 tests Owners 70 · 60 reviews

Best test result: #1 of 11 in 2022 AutoBild Sports Cars UHP Summer Tyre Test (wet handling)

Category by category

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

  1. 78

    Dry

    Primacy 4+ +3
    75
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 9 / 4 tests8275
    Reviews found online7175

    Primacy 4+: 60% × 82.3 + 40% × 70.5 = 78

    Ultrac Vorti+: 60% × 75.1 + 40% × 74.5 = 75

  2. 79

    Wet

    Primacy 4+ +1
    78
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 9 / 4 tests8380
    Reviews found online7474

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

    Ultrac Vorti+: 60% × 80.2 + 40% × 73.6 = 78

  3. 71

    Comfort

    Primacy 4+ +6
    65
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 1 / – tests73≈ 68 (est.)
    Reviews found online6963

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

    Ultrac Vorti+: 40% × 67.9 (est.) + 60% × 62.7 = 65

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

  4. 73

    Noise

    Primacy 4+ +6
    67
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 7 / 3 tests7767
    Reviews found online≈ 67 (est.)≈ 67 (est.)

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

    Ultrac Vorti+: 60% × 67.4 + 40% × 66.6 (est.) = 67

    No owner ratings of noise for Primacy 4+ or Ultrac Vorti+. 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.

  5. 85

    Treadwear

    Primacy 4+ +20
    65
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 4 / – tests95≈ 65 (est.)
    Reviews found online6964

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

    Ultrac Vorti+: 60% × 65.4 (est.) + 40% × 64.1 = 65

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

  6. 65

    Handling (owners)

    Ultrac Vorti+ +11
    76
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Reviews found online6576
  7. 78

    Efficiency

    Primacy 4+ +42
    36
    Why this score
    SourcePrimacy 4+Ultrac Vorti+
    Professional tests (TWG score) · 8 / 3 tests7836
Scores at a glance
CategoryMichelin Primacy 4+Vredestein Ultrac Vorti+
Relative Score 77 73
Dry 78 75
Wet 79 78
Comfort 71 65
Noise 73 67
Treadwear 85 65
Handling (owners) 65 76
Efficiency 78 36

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
± 4

Primacy 4+

± 6

Ultrac Vorti+

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+Ultrac Vorti+ΔHead-to-head
Dry Braking Dry 96% #3/8 · 2025 EV Tyre Test 94% #8/11 · 2024 Summer SUV Tyre Test – Different tests
Dry Handling Dry 98% #4/8 · 2025 EV Tyre Test 98% #8/11 · 2024 Summer SUV Tyre Test – Different tests
Curved Aquaplaning Wet 86% #7/8 · 2025 EV Tyre Test 97% #5/11 · 2024 Summer SUV Tyre Test – Different tests
Straight Aquaplaning Wet 82% #7/8 · 2025 EV Tyre Test 96% #2/11 · 2024 Summer SUV Tyre Test – Different tests
Wet Braking Wet 91% #5/8 · 2025 EV Tyre Test 92% #8/11 · 2024 Summer SUV Tyre Test – Different tests
Wet Circle Wet 97% #7/8 · 2025 EV Tyre Test 95% #8/11 · 2024 Summer SUV Tyre Test – Different tests
Wet Handling Wet 95% #6/8 · 2025 EV Tyre Test 95% #9/11 · 2024 Summer SUV Tyre Test – Different tests
Noise Noise 96% #6/8 · 2025 EV Tyre Test 98% #6/11 · 2024 Summer SUV Tyre Test – Different tests
Rolling Resistance Efficiency 90% #2/8 · 2025 EV Tyre Test 81% #10/11 · 2024 Summer SUV Tyre Test – Different tests
Also published by the testers (not in the score)
Price Cost 52% #16/16 · 2024 ADAC Summer Tyre Test 69% #3/11 · 2022 AutoBild Sports Cars UHP Summer Tyre Test – Different tests
Overall Ranking Overall #4/8 2025 EV Tyre Test #9/11 2024 Summer SUV Tyre Test – Different tests

Pros, cons & observations

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

Tire A 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

Tire B Ultrac Vorti+

Pros

  • Significantly better ride comfort and reduced road noise compared to run-flat tires
  • Excellent wet handling and dependable traction in heavy rain
  • Balanced dry grip and improved steering response

Cons

  • Subpar grip performance in snow and winter conditions
  • Potentially quicker rear tread wear under aggressive driving
  • Slightly reduced cornering grip compared to specialized rain-oriented tires
All owner themes in the Ultrac Vorti+ review

Specs side by side

Attribute A · Michelin Primacy 4+ B · Vredestein Ultrac Vorti+
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available6665
Rim diameters16″ – 21″18″ – 22″
Sizes in common99

Which one should you actually buy?

Michelin Primacy 4+

Vredestein Ultrac Vorti+

Narrow edge: Michelin Primacy 4+ — better efficiency, treadwear and comfort. Pick the Vredestein Ultrac Vorti+ if handling matters most to you.

Pick tire A You want lower fuel or energy use

Michelin Primacy 4+ scores 78 vs 36 on efficiency.

Pick tire A You want the longest tread life

Michelin Primacy 4+ scores 85 vs 65 on treadwear.

Pick tire B You enjoy sharp, responsive handling

Vredestein Ultrac Vorti+ scores 76 vs 65 on handling.

Pick tire A You want the most comfortable ride

Michelin Primacy 4+ scores 71 vs 65 on comfort.

Tire A · Michelin Primacy 4+
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Tire B · Vredestein Ultrac Vorti+
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Primacy 4+ or Ultrac Vorti+?

Which is better in the wet, Primacy 4+ or Ultrac Vorti+?

Neither, by our numbers: 79 vs 78 on the wet score, within 3 points.

Which grips better on dry roads, Primacy 4+ or Ultrac Vorti+?

Michelin Primacy 4+, 78 vs 75 on our dry score.

Which is quieter, Primacy 4+ or Ultrac Vorti+?

Michelin Primacy 4+, 73 vs 67 on our noise score.

Which is more comfortable, Primacy 4+ or Ultrac Vorti+?

Michelin Primacy 4+, 71 vs 65 on our comfort score.

Which lasts longer, Primacy 4+ or Ultrac Vorti+?

Michelin Primacy 4+, 85 vs 65 on our treadwear score.

Which rolls more easily, Primacy 4+ or Ultrac Vorti+?

Michelin Primacy 4+, 78 vs 36 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