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Michelin 4x4 Diamaris looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Continental TerrainContact A/T vs Michelin 4x4 Diamaris — 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 2 + 0 road tests and 33 + 7 owner reviews. How we score

TerrainContact A/T is ahead, 76–68

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Continental TerrainContact A/T
Tire AContinental

TerrainContact A/T

All-Terrain tire

± 7

Tests 74 · 2 tests Owners 74 · 33 reviews

Best test result: #1 of 9 in 2025 Tire Rack All Terrain Tyre Test (dry braking)

Category by category

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

  1. 77

    Dry

    TerrainContact A/T +8
    69
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score) · 1 / – tests76≈ 69 (est.)
    Reviews found online7869

    TerrainContact A/T: 60% × 76.5 + 40% × 78.4 = 77

    4x4 Diamaris: 60% × 68.5 (est.) + 40% × 69.3 = 69

    No road tests of dry for 4x4 Diamaris. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 80

    Wet

    TerrainContact A/T +10
    70
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score) · 1 / – tests77≈ 70 (est.)
    Reviews found online8470

    TerrainContact A/T: 60% × 77.2 + 40% × 83.5 = 80

    4x4 Diamaris: 60% × 70.4 (est.) + 40% × 70.2 = 70

    No road tests of wet for 4x4 Diamaris. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 65

    Snow

    No comparison
    –
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score)≈ 68 (est.)–
    Reviews found online61–

    TerrainContact A/T: 60% × 67.5 (est.) + 40% × 61.1 = 65

    No road tests of snow for TerrainContact A/T. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 72

    Comfort

    TerrainContact A/T +6
    66
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score) · 1 / – tests72≈ 68 (est.)
    Reviews found online7264

    TerrainContact A/T: 40% × 72.2 + 60% × 72.3 = 72

    4x4 Diamaris: 40% × 67.8 (est.) + 60% × 64.4 = 66

    No road tests of comfort for 4x4 Diamaris. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 79

    Noise

    No comparison
    –
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score) · 1 / – tests82–
    Reviews found online74–

    TerrainContact A/T: 60% × 81.6 + 40% × 74.4 = 79

  6. 68

    Treadwear

    TerrainContact A/T +8
    60
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Professional tests (TWG score) · 1 / – tests67≈ 63 (est.)
    Reviews found online7056

    TerrainContact A/T: 60% × 66.9 + 40% × 69.8 = 68

    4x4 Diamaris: 60% × 62.6 (est.) + 40% × 55.7 = 60

    No road tests of treadwear for 4x4 Diamaris. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 74

    Handling (owners)

    TerrainContact A/T +4
    70
    Why this score
    SourceTerrainContact A/T4x4 Diamaris
    Reviews found online7470
Scores at a glance
CategoryContinental TerrainContact A/TMichelin 4x4 Diamaris
Relative Score 76 68
Dry 77 69
Wet 80 70
Snow 65 –
Comfort 72 66
Noise 79 –
Treadwear 68 60
Handling (owners) 74 70

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

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

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 7

TerrainContact A/T

± 8

4x4 Diamaris

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 TerrainContact A/T

Pros

  • Exceptionally quiet and smooth ride quality for an all-terrain tire
  • Superior wet-weather traction and hydroplaning resistance
  • Strong on-road handling and stability during highway driving

Cons

  • Inconsistent performance on ice and packed snow
  • Limited capability in deep mud or extreme off-road terrain
  • Reports of premature tread wear in some heavy-duty or high-torque applications
All owner themes in the TerrainContact A/T review

Tire B 4x4 Diamaris

Pros

  • Exceptional handling precision and steering response
  • High levels of ride comfort and low road noise
  • Strong performance on dry pavement

Cons

  • Rapid tread wear and disappointing overall mileage
  • High price point relative to the lifespan of the tire
  • Inconsistent wet weather grip and confidence
All owner themes in the 4x4 Diamaris review

Specs side by side

Attribute A · Continental TerrainContact A/T B · Michelin 4x4 Diamaris
CategoryAll-Terrain tireSummer
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available30—
Rim diameters16″ – 22″—
Tread depth10 - 16/32″—
UTQG680 A A - B220 AA A
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised Outline White Lettering—
Max pressure44 - 80 psi—

Which one should you actually buy?

Continental TerrainContact A/T

Michelin 4x4 Diamaris

Winner: Continental TerrainContact A/T — better wet, dry and treadwear. It leads or ties in every category we score. Michelin 4x4 Diamaris rests on little evidence so far (0 tests, 7 reviews), so read this result as provisional.

Pick tire A Your priority is wet-weather safety

Continental TerrainContact A/T scores 80 vs 70 on wet.

Pick tire A You want the most grip on dry roads

Continental TerrainContact A/T scores 77 vs 69 on dry.

Pick tire A You want the longest tread life

Continental TerrainContact A/T scores 68 vs 60 on treadwear.

Pick tire A You want the most comfortable ride

Continental TerrainContact A/T scores 72 vs 66 on comfort.

Tire A · Continental TerrainContact A/T
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Tire B · Michelin 4x4 Diamaris
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TerrainContact A/T or 4x4 Diamaris?

Which is better in the wet, TerrainContact A/T or 4x4 Diamaris?

Continental TerrainContact A/T, 80 vs 70 on our wet score.

Which grips better on dry roads, TerrainContact A/T or 4x4 Diamaris?

Continental TerrainContact A/T, 77 vs 69 on our dry score.

Which is more comfortable, TerrainContact A/T or 4x4 Diamaris?

Continental TerrainContact A/T, 72 vs 66 on our comfort score.

Which lasts longer, TerrainContact A/T or 4x4 Diamaris?

Continental TerrainContact A/T, 68 vs 60 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