Tests – · 1 test Owners 74 · 94 reviews
Head-to-head
Updated
Pirelli Scorpion All Terrain Plus vs Cooper Discoverer AT3 4S — 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 1 + 1 road tests and 94 + 688 owner reviews. How we score
Discoverer AT3 4S is ahead, 79–72
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Tests – · 1 test Owners 84 · 688 reviews
Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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71
Dry
Discoverer AT3 4S +1081Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) ≈ 70 (est.) ≈ 76 (est.) Reviews found online 73 89 Scorpion All Terrain Plus: 60% × 69.9 (est.) + 40% × 72.6 = 71
Discoverer AT3 4S: 60% × 76.5 (est.) + 40% × 88.5 = 81
No road tests of dry for Scorpion All Terrain Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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78
Wet
Discoverer AT3 4S +785Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) ≈ 76 (est.) ≈ 82 (est.) Reviews found online 81 91 Scorpion All Terrain Plus: 60% × 76.3 (est.) + 40% × 80.9 = 78
Discoverer AT3 4S: 60% × 81.7 (est.) + 40% × 90.7 = 85
No road tests of wet for Scorpion All Terrain Plus. 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 Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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73
Snow
Level73Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) ≈ 72 (est.) ≈ 72 (est.) Reviews found online 76 75 Scorpion All Terrain Plus: 60% × 72.1 (est.) + 40% × 75.5 = 73
Discoverer AT3 4S: 60% × 71.8 (est.) + 40% × 74.5 = 73
No road tests of snow for Scorpion All Terrain Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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71
Comfort
Discoverer AT3 4S +980Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) ≈ 69 (est.) ≈ 72 (est.) Reviews found online 72 85 Scorpion All Terrain Plus: 40% × 69.3 (est.) + 60% × 71.6 = 71
Discoverer AT3 4S: 40% × 72.1 (est.) + 60% × 85.2 = 80
No road tests of comfort for Scorpion All Terrain Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).
No road tests of comfort for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.21).
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66
Noise
Discoverer AT3 4S +773Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) ≈ 66 (est.) ≈ 66 (est.) Reviews found online 66 83 Scorpion All Terrain Plus: 60% × 66.3 (est.) + 40% × 66.4 = 66
Discoverer AT3 4S: 60% × 66.3 (est.) + 40% × 83 = 73
No road tests of noise for Scorpion All Terrain Plus or Discoverer AT3 4S. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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68
Treadwear
Discoverer AT3 4S +775Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Professional tests (TWG score) · 1 / 1 tests 67 71 Reviews found online 70 80 Tested Tread Life (Miles) (% of best) · 1 shared test · wins 0–1 55% 60% Scorpion All Terrain Plus: 60% × 66.9 + 40% × 69.9 = 68
Discoverer AT3 4S: 60% × 71.1 + 40% × 79.9 = 75
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75
Handling (owners)
Discoverer AT3 4S +580Why this score
Source Scorpion All Terrain Plus Discoverer AT3 4S Reviews found online 75 80
Scores at a glance
| Category | Pirelli Scorpion All Terrain Plus | Cooper Discoverer AT3 4S |
|---|---|---|
| Relative Score | 72 | 79 |
| Dry | 71 | 81 |
| Wet | 78 | 85 |
| Snow | 73 | 73 |
| Comfort | 71 | 80 |
| Noise | 66 | 73 |
| Treadwear | 68 | 75 |
| Handling (owners) | 75 | 80 |
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
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Neutral
NotLessNeutralImportantMost
Less important
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Important
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Recomputed
Headline score
72
/ 100
Scorpion All Terrain Plus
79
/ 100
Discoverer AT3 4S
The professional test results behind the scores
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
In the overall rankings of 1 tests that ran both, Pirelli Scorpion All Terrain Plus finished ahead 0 times and Cooper Discoverer AT3 4S 1 times.
| Discipline | Category | Scorpion All Terrain Plus | Discoverer AT3 4S | Δ | Head-to-head |
|---|---|---|---|---|---|
| Tested Tread Life (Miles) | Treadwear | 55% | 60% | −5.0 | 0–1 in 1 shared test Newest: 2022 Consumer Reports All Terrain Truck Tires · 215/60R17 |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #14/18 | #5/18 | – | 0–1 in 1 shared test Newest: 2022 Consumer Reports All Terrain Truck Tires · 215/60R17 |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Scorpion All Terrain Plus
Pros
- Exceptional wet, mud, and winter/snow traction (3-peak mountain snowflake certified)
- Surprisingly quiet and smooth ride on the highway compared to aggressive competitors
- Aggressive, attractive sidewall and tread styling that enhances vehicle appearance
Cons
- Some users reported persistent balancing issues or vibrations at highway speeds
- A few drivers noted increased road noise or uneven shoulder wear as the tires aged
- Minor reduction in fuel economy reported by some truck and SUV owners
Tire B Discoverer AT3 4S
Pros
- Exceptionally quiet and smooth on-road ride compared to typical all-terrain tires
- Superb traction in wet, rainy, and deep winter snow conditions
- Strong value and competitive pricing relative to performance and lifespan
Cons
- Potential for accelerated tread wear under heavy off-road use or demanding mountain driving
- Occasional reports of balancing issues or out-of-round tires requiring multiple adjustments
- Minor fuel economy drop or increased rolling resistance when switching from standard highway tires
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Pirelli Scorpion All Terrain Plus
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Cooper Discoverer AT3 4S
Community sentiment for the Cooper Discoverer AT3 4S is predominantly positive, with drivers praising its quiet highway ride, strong traction across snow, rain, and dry pavement, and appealing appearance. Several owners note that while it handles light off-road duties and daily driving well, tread life occasionally falls short of mileage expectations. In addition, multiple posts highlight frustration and concern regarding availability and recent discontinuation across various sizes.
ramforum.com
·2021-11-29
“I bought the Cooper Discoverer at3 4s, very good tire, great price and an ideal all terrain tire. Living in Canada, we get snow, slush, rain and this tire works excellent in all those scenario's. This is the second time I have purchased these, quite pleased with them for traction, appearance and road noise.”
r/4x4
·12 upvotes ·2026-07-08
“They Discontinued My Tire! I've been using Cooper Discoverer AT3 4s forever. For some reason Cooper, in it's infinite wisdom, has discontinued the 265 75r 16 size so I need a replacment. I'm in Southern California and do quite a bit of wildlife habitat restoration work in dry desert conditions. This involves lots and lots of highway miles as well as dirt roads from good to, on what planet is this a road. Occasionally we are even driving up dry washes, trying to avoid all the nasty sidewall eating rocks and spiny bushes. The tread on the discoverer is pretty modest and quite on the highway but when aired downed, runs well in sandy conditions. They even work pretty well in rocky conditions. The other thing is they wear really well. Ive got 60k+ miles on my current set and can squeeze another 10k out of them if I have to. So to the point, Im looking for suggestions for a replacment. Any help would be greatly appreciated.”
r/HondaElement
·74 upvotes ·2021-02-15
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Top themes
#Snow and wet traction#Quiet highway ride#Tread life and longevity#Discontinuation and availability#Comfortable ride quality#Mild off-road performance
Based on 27 community posts
Specs side by side
| Attribute | A · Pirelli Scorpion All Terrain Plus | B · Cooper Discoverer AT3 4S |
|---|---|---|
| Category | All-Terrain tire | All-Terrain tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 29 | 14 |
| Rim diameters | 16″ – 20″ | 15″ – 22″ |
| Tread depth | 12 - 16/32″ | 12 - 14/32″ |
| UTQG | 640 A B | 620 A B |
| Treadwear warranty | 50,000 mi | 65,000 mi |
| Sidewall | Black Side Wall - Raised White Lettering | Black Side Wall - Raised Outline White Lettering |
| Max pressure | 44 - 80 psi | 44 - 50 psi |
| Sizes in common | 4 | 4 |
Which one should you actually buy?
72
/ 100
Pirelli Scorpion All Terrain Plus
79
/ 100
Cooper Discoverer AT3 4S
Winner: Cooper Discoverer AT3 4S — better dry, comfort and wet. It leads or ties in every category we score.
Pick tire B
You want the most grip on dry roads
Cooper Discoverer AT3 4S scores 81 vs 71 on dry.
Pick tire B
You want the most comfortable ride
Cooper Discoverer AT3 4S scores 80 vs 71 on comfort.
Pick tire B
Your priority is wet-weather safety
Cooper Discoverer AT3 4S scores 85 vs 78 on wet.
Pick tire B
You want a quieter cabin
Cooper Discoverer AT3 4S scores 73 vs 66 on noise.
Tire A · Pirelli Scorpion All Terrain Plus
Tire B · Cooper Discoverer AT3 4S
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Scorpion All Terrain Plus or Discoverer AT3 4S?
Which is better in the wet, Scorpion All Terrain Plus or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 85 vs 78 on our wet score.
Which grips better on dry roads, Scorpion All Terrain Plus or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 81 vs 71 on our dry score.
Which is better in snow, Scorpion All Terrain Plus or Discoverer AT3 4S?
Neither, by our numbers: 73 vs 73 on the snow score, within 3 points.
Which is quieter, Scorpion All Terrain Plus or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 73 vs 66 on our noise score.
Which is more comfortable, Scorpion All Terrain Plus or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 80 vs 71 on our comfort score.
Which lasts longer, Scorpion All Terrain Plus or Discoverer AT3 4S?
Cooper Discoverer AT3 4S, 75 vs 68 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