Head-to-head Updated

Cooper Discoverer A/T3 Sport vs General Grabber AT3 — 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 + 2 road tests and 4 + 251 owner reviews. How we score

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.

Cooper Discoverer A/T3 Sport
Tire ACooper

Discoverer A/T3 Sport

All Terrain and Off Road All Season tire

Tests – · none yet Owners – · 4 reviews (needs 5)

General Grabber AT3
Tire BGeneral

Grabber AT3

All-Terrain tire

± 7

Tests 70 · 2 tests Owners 78 · 251 reviews

Best test result: #2 of 8 in 2018 Auto Bild SUV All Season Tyre Test (noise)

“How long have I got? Grabber at3s, plenty of tread but I’m seeing some cracks forming. Are these something I need to be concerned about imminently or am I safe to continue driving for a few more months?”

Category by category

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

  1. –

    Dry

    No comparison
    71
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score) · – / 1 tests–66
    Reviews found online–78

    Grabber AT3: 60% × 66.4 + 40% × 78.4 = 71

  2. –

    Wet

    No comparison
    72
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score) · – / 1 tests–68
    Reviews found online–78

    Grabber AT3: 60% × 68.2 + 40% × 78.3 = 72

  3. –

    Snow

    No comparison
    75
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score) · – / 1 tests–77
    Reviews found online–73

    Grabber AT3: 60% × 76.9 + 40% × 73.2 = 75

  4. –

    Comfort

    No comparison
    75
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score)–≈ 71 (est.)
    Reviews found online–78

    Grabber AT3: 40% × 70.7 (est.) + 60% × 78 = 75

    No road tests of comfort for Grabber AT3. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. –

    Noise

    No comparison
    72
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score) · – / 1 tests–76
    Reviews found online–≈ 67 (est.)

    Grabber AT3: 60% × 75.8 + 40% × 66.6 (est.) = 72

    No owner ratings of noise for Grabber AT3. 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.

  6. –

    Treadwear

    No comparison
    75
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score)–≈ 71 (est.)
    Reviews found online–81

    Grabber AT3: 60% × 71.5 (est.) + 40% × 81.4 = 75

    No road tests of treadwear for Grabber AT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. –

    Handling (owners)

    No comparison
    74
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Reviews found online–74
  8. –

    Efficiency

    No comparison
    53
    Why this score
    SourceDiscoverer A/T3 SportGrabber AT3
    Professional tests (TWG score) · – / 1 tests–53
Scores at a glance
Cooper Discoverer A/T3 Sport vs General Grabber AT3: scores by category (0–100)
CategoryCooper Discoverer A/T3 SportGeneral Grabber AT3
Relative Score – 73
Dry – 71
Wet – 72
Snow – 75
Comfort – 75
Noise – 72
Treadwear – 75
Handling (owners) – 74
Efficiency – 53

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
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost
Recomputed
Headline score

Discoverer A/T3 Sport

± 7

Grabber AT3

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 Grabber AT3

Pros

  • Exceptionally low road noise for an all-terrain tire, maintaining high highway comfort
  • Strong on-road handling and grip in both dry and wet conditions
  • Reliable light off-road traction, particularly on grass, gravel, dirt tracks, and light mud

Cons

  • Softer sidewalls can lead to vulnerability against sharp stones, flints, or tree stumps
  • Subpar performance on compacted snow and ice compared to dedicated winter tires
  • Tread can pack up and struggle in deep, heavy, or extremely soft mud
All owner themes in the Grabber AT3 review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer A/T3 Sport

We haven't collected enough community discussion about this tire yet.

Tire B

General Grabber AT3

Positive

Community feedback for the General Grabber AT3 is largely positive, with owners highlighting strong tread longevity, smooth ride comfort, and low road noise. Drivers also appreciate its off-road capability in gravel, mud, and snow, though occasional questions arise regarding sidewall damage, cracking, and tire sizing fitment.

Top themes
#tread life and durability#gravel and off-road performance#ride comfort and low noise#snow and loose terrain grip#tire damage and sidewall integrity#fitment and tire pressure

Based on 20 community posts

Specs side by side

Attribute A · Cooper Discoverer A/T3 Sport B · General Grabber AT3
CategoryAll Terrain and Off Road All Season tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available—77
Rim diameters—15″ – 22″

Which one should you actually buy?

Cooper Discoverer A/T3 Sport

General Grabber AT3

Only General Grabber AT3 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.

Tire A · Cooper Discoverer A/T3 Sport
Tire B · General Grabber AT3

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.

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