Tests 69 · 2 tests Owners 73 · 14 reviews
Best test result: #5 of 20 in 2020 Nordic and Studded Winter Tyre Test (dry braking)
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 2 + 0 road tests and 14 + 16 owner reviews. How we score
Observe GSi-6 HP is ahead, 72–66
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Tests 69 · 2 tests Owners 73 · 14 reviews
Best test result: #5 of 20 in 2020 Nordic and Studded Winter Tyre Test (dry braking)
Tests – · none yet Owners 64 · 16 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 73 | ≈ 66 (est.) |
| Reviews found online | 77 | 63 |
Observe GSi-6 HP: 60% × 73 + 40% × 77.4 = 75
Open Country All Terrain: 60% × 66 (est.) + 40% × 63.1 = 65
No road tests of dry for Open Country All Terrain. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 2 / – tests | 71 | ≈ 69 (est.) |
| Reviews found online | 81 | 67 |
Observe GSi-6 HP: 60% × 71.2 + 40% × 81 = 75
Open Country All Terrain: 60% × 68.7 (est.) + 40% × 67.1 = 68
No road tests of wet for Open Country All Terrain. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 2 / – tests | 60 | ≈ 66 (est.) |
| Reviews found online | 75 | 59 |
Observe GSi-6 HP: 60% × 59.7 + 40% × 75.2 = 66
Open Country All Terrain: 60% × 66.5 (est.) + 40% × 59.3 = 64
No road tests of snow for Open Country All Terrain. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 78 | ≈ 68 (est.) |
| Reviews found online | 74 | 64 |
Observe GSi-6 HP: 40% × 77.5 + 60% × 74.4 = 76
Open Country All Terrain: 40% × 68.1 (est.) + 60% × 63.6 = 65
No road tests of comfort for Open Country All Terrain. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 72 | – |
| Reviews found online | ≈ 67 (est.) | – |
Observe GSi-6 HP: 60% × 71.7 + 40% × 66.6 (est.) = 70
No owner ratings of noise for Observe GSi-6 HP. 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.
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) | ≈ 63 (est.) | ≈ 66 (est.) |
| Reviews found online | 58 | 67 |
Observe GSi-6 HP: 60% × 63.4 (est.) + 40% × 58.3 = 61
Open Country All Terrain: 60% × 66.4 (est.) + 40% × 66.8 = 67
No road tests of treadwear for Observe GSi-6 HP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
No road tests of treadwear for Open Country All Terrain. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Reviews found online | 76 | 63 |
| Source | Observe GSi-6 HP | Open Country All Terrain |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 66 | – |
| Category | Toyo Observe GSi-6 HP | Toyo Open Country All Terrain |
|---|---|---|
| Relative Score | 72 | 66 |
| Dry | 75 | 65 |
| Wet | 75 | 68 |
| Snow | 66 | 64 |
| Comfort | 76 | 65 |
| Noise | 70 | – |
| Treadwear | 61 | 67 |
| Handling (owners) | 76 | 63 |
| Efficiency | 66 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Observe GSi-6 HP
Open Country All Terrain
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Toyo Observe GSi-6 HP | B · Toyo Open Country All Terrain |
|---|---|---|
| Category | Winter | All-Terrain tire |
| Vehicle type | — | SUV and 4x4 |
| Sizes available | 39 | — |
| Rim diameters | 16″ – 21″ | — |
| Tread depth | 11 - 12/32″ | — |
| Sidewall | Black Side Wall | — |
| Max pressure | 50 - 51 psi | — |
Toyo Observe GSi-6 HP
Toyo Open Country All Terrain
Winner: Toyo Observe GSi-6 HP — better handling, comfort and dry. Pick the Toyo Open Country All Terrain if treadwear matters most to you. Toyo Open Country All Terrain rests on little evidence so far (0 tests, 16 reviews), so read this result as provisional.
Toyo Observe GSi-6 HP scores 76 vs 63 on handling.
Toyo Observe GSi-6 HP scores 76 vs 65 on comfort.
Toyo Observe GSi-6 HP scores 75 vs 65 on dry.
Toyo Observe GSi-6 HP scores 75 vs 68 on wet.
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Toyo Observe GSi-6 HP, 75 vs 68 on our wet score.
Toyo Observe GSi-6 HP, 75 vs 65 on our dry score.
Neither, by our numbers: 66 vs 64 on the snow score, within 3 points.
Toyo Observe GSi-6 HP, 76 vs 65 on our comfort score.
Toyo Open Country All Terrain, 67 vs 61 on our treadwear score.
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