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Toyo Open Country A/T plus vs Cooper Discoverer A/T3 Sport — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Discoverer A/T3 Sport is ahead, 74–63

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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. 66

    Dry

    Discoverer A/T3 Sport +9
    75
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online6579
  2. 64

    Wet

    Discoverer A/T3 Sport +12
    76
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online6278
  3. –

    Snow

    No comparison
    70
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online–70
  4. 66

    Comfort

    Discoverer A/T3 Sport +8
    74
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online6278
  5. 59

    Treadwear

    Discoverer A/T3 Sport +9
    68
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online5471
  6. 64

    Handling

    Discoverer A/T3 Sport +12
    76
    Why this score
    SourceOpen Country A/T plusDiscoverer A/T3 Sport
    Reviews found online6476
Scores at a glance
CategoryToyo Open Country A/T plusCooper Discoverer A/T3 Sport
Relative Score 63 74
Dry 66 75
Wet 64 76
Snow – 70
Comfort 66 74
Treadwear 59 68
Handling 64 76

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Important
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Neutral
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Neither tire has a score here yet, so this weight changes nothing.

Less important
NoneLessNeutralMoreMost
Important
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Neutral
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Recomputed
Headline score

Open Country A/T plus

Discoverer A/T3 Sport

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 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

Tire B Discoverer A/T3 Sport

Pros

  • Exceptional ride comfort on long trips and asphalt
  • Very low fuel consumption compared to other tires
  • Strong dry grip and above-average on-road performance

Cons

  • Snow performance decreases significantly after the first year
  • Slight oversteer tendencies on wet roundabouts
  • Slipping tendencies in wet mud conditions
All owner themes in the Discoverer A/T3 Sport review

Specs side by side

Attribute A · Toyo Open Country A/T plus B · Cooper Discoverer A/T3 Sport
CategorySummerAll Terrain and Off Road All Season tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available54—
Rim diameters15″ – 21″—

Which one should you actually buy?

Toyo Open Country A/T plus

Cooper Discoverer A/T3 Sport

Winner: Cooper Discoverer A/T3 Sport — better wet, handling and dry. It leads or ties in every category we score.

Pick tire B Your priority is wet-weather safety

Cooper Discoverer A/T3 Sport scores 76 vs 64 on wet.

Pick tire B You enjoy sharp, responsive handling

Cooper Discoverer A/T3 Sport scores 76 vs 64 on handling.

Pick tire B You want the most grip on dry roads

Cooper Discoverer A/T3 Sport scores 75 vs 66 on dry.

Pick tire B You want the longest tread life

Cooper Discoverer A/T3 Sport scores 68 vs 59 on treadwear.

Tire A · Toyo Open Country A/T plus
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Tire B · Cooper Discoverer A/T3 Sport
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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.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

74

Leads

Discoverer A/T3 Sport

Amazon