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Head-to-head Updated

Cooper Discoverer A/TT SUV vs Toyo Open Country A/T plus — 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 + 0 road tests and 6 + 12 owner reviews. How we score

Discoverer A/TT SUV leads, 72–69 Narrow edge

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Category by category

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

  1. 73

    Dry

    Discoverer A/TT SUV +4
    69
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Professional tests (TWG score)≈ 71 (est.)≈ 69 (est.)
    Reviews found online7570

    Discoverer A/TT SUV: 60% × 71 (est.) + 40% × 75.4 = 73

    Open Country A/T plus: 60% × 68.8 (est.) + 40% × 70.1 = 69

    No road tests of dry for Discoverer A/TT SUV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

    No road tests of dry for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 71

    Wet

    Discoverer A/TT SUV +1
    70
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Professional tests (TWG score)≈ 71 (est.)≈ 70 (est.)
    Reviews found online7170

    Discoverer A/TT SUV: 60% × 70.8 (est.) + 40% × 70.9 = 71

    Open Country A/T plus: 60% × 70.5 (est.) + 40% × 70.3 = 70

    No road tests of wet for Discoverer A/TT SUV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 68

    Snow

    No comparison
    –
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Professional tests (TWG score)≈ 69 (est.)–
    Reviews found online66–

    Discoverer A/TT SUV: 60% × 69 (est.) + 40% × 65.7 = 68

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

  4. 69

    Comfort

    Discoverer A/TT SUV +3
    66
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Professional tests (TWG score)≈ 69 (est.)≈ 68 (est.)
    Reviews found online6965

    Discoverer A/TT SUV: 40% × 68.8 (est.) + 60% × 69.3 = 69

    Open Country A/T plus: 40% × 68 (est.) + 60% × 65.3 = 66

    No road tests of comfort for Discoverer A/TT SUV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 74

    Treadwear

    Discoverer A/TT SUV +9
    65
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Professional tests (TWG score)≈ 71 (est.)≈ 66 (est.)
    Reviews found online7864

    Discoverer A/TT SUV: 60% × 70.7 (est.) + 40% × 78 = 74

    Open Country A/T plus: 60% × 65.5 (est.) + 40% × 63.7 = 65

    No road tests of treadwear for Discoverer A/TT SUV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

    No road tests of treadwear for Open Country A/T plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  6. 75

    Handling (owners)

    Discoverer A/TT SUV +4
    71
    Why this score
    SourceDiscoverer A/TT SUVOpen Country A/T plus
    Reviews found online7571
Scores at a glance
CategoryCooper Discoverer A/TT SUVToyo Open Country A/T plus
Relative Score 72 69
Dry 73 69
Wet 71 70
Snow 68 –
Comfort 69 66
Treadwear 74 65
Handling (owners) 75 71

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
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 8

Discoverer A/TT SUV

± 8

Open Country A/T plus

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 Discoverer A/TT SUV

Pros

  • Exceptional durability and long tread life, with minimal wear reported even after tens of thousands of miles
  • Strong off-road performance aided by rugged, reinforced sidewalls
  • Great handling, stability, and grip on dry asphalt

Cons

  • Subpar wet-weather grip and a tendency to slide in rainy conditions
  • Mediocre braking performance and traction in snow and ice compared to dedicated winter tires
  • Noticeable road noise at certain speeds
All owner themes in the Discoverer A/TT SUV review

Tire B Open Country A/T plus

Pros

  • Exceptionally low road noise for an all-terrain tire
  • Strong traction in off-road conditions such as mud, grass, gravel, and snow
  • Good overall value and pricing relative to premium brands

Cons

  • Some reports of faster-than-desired tread wear or soft rubber compound
  • Occasional complaints about reduced grip or a spongy feel on wet tarmac
  • Not optimized for extreme deep snow or heavy-duty mud terrain applications
All owner themes in the Open Country A/T plus review

Specs side by side

Attribute A · Cooper Discoverer A/TT SUV B · Toyo Open Country A/T plus
CategoryAll-Terrain tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available—54
Rim diameters—15″ – 21″

Which one should you actually buy?

Cooper Discoverer A/TT SUV

Toyo Open Country A/T plus

Narrow edge: Cooper Discoverer A/TT SUV — better treadwear, dry and comfort. It leads or ties in every category we score. Cooper Discoverer A/TT SUV rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional. Toyo Open Country A/T plus rests on little evidence so far (0 tests, 12 reviews), so read this result as provisional.

Pick tire A You want the longest tread life

Cooper Discoverer A/TT SUV scores 74 vs 65 on treadwear.

Pick tire A You want the most grip on dry roads

Cooper Discoverer A/TT SUV scores 73 vs 69 on dry.

Pick tire A You want the most comfortable ride

Cooper Discoverer A/TT SUV scores 69 vs 66 on comfort.

Tire A · Cooper Discoverer A/TT SUV
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Tire B · Toyo Open Country A/T plus
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Discoverer A/TT SUV or Open Country A/T plus?

Which is better in the wet, Discoverer A/TT SUV or Open Country A/T plus?

Neither, by our numbers: 71 vs 70 on the wet score, within 3 points.

Which grips better on dry roads, Discoverer A/TT SUV or Open Country A/T plus?

Cooper Discoverer A/TT SUV, 73 vs 69 on our dry score.

Which is more comfortable, Discoverer A/TT SUV or Open Country A/T plus?

Cooper Discoverer A/TT SUV, 69 vs 66 on our comfort score.

Which lasts longer, Discoverer A/TT SUV or Open Country A/T plus?

Cooper Discoverer A/TT SUV, 74 vs 65 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