tirewheelguide
Head-to-head Updated

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

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

Discoverer A/T3 Sport is ahead, 74–63

Check price on Amazon · Discoverer A/T3 Sport or Open Country A/T plus on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Category by category

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

  1. 75

    Dry

    Discoverer A/T3 Sport +9
    66
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online7965
  2. 76

    Wet

    Discoverer A/T3 Sport +12
    64
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online7862
  3. 70

    Snow

    No comparison
    –
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online70–
  4. 74

    Comfort

    Discoverer A/T3 Sport +8
    66
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online7862
  5. 68

    Treadwear

    Discoverer A/T3 Sport +9
    59
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online7154
  6. 76

    Handling

    Discoverer A/T3 Sport +12
    64
    Why this score
    SourceDiscoverer A/T3 SportOpen Country A/T plus
    Reviews found online7664
Scores at a glance
CategoryCooper Discoverer A/T3 SportToyo Open Country A/T plus
Relative Score 74 63
Dry 75 66
Wet 76 64
Snow 70 –
Comfort 74 66
Treadwear 68 59
Handling 76 64

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.

Important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost

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

Less important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score

Discoverer A/T3 Sport

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/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

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/T3 Sport B · Toyo Open Country A/T plus
CategoryAll Terrain and Off Road All Season tireSummer
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available—54
Rim diameters—15″ – 21″

Which one should you actually buy?

Cooper Discoverer A/T3 Sport

Toyo Open Country A/T plus

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

Pick tire A Your priority is wet-weather safety

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

Pick tire A You enjoy sharp, responsive handling

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

Pick tire A You want the most grip on dry roads

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

Pick tire A You want the longest tread life

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

Tire A · Cooper Discoverer A/T3 Sport
Check price on Amazon
Tire B · Toyo Open Country A/T plus
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

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