Tests 71 · 1 test Owners 80 · 16 reviews
Best test result: #2 of 11 in 2019 19 Inch Performance Winter Tyre Test (dry handling)
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 16 + 55 owner reviews. How we score
Alpin A4 leads, 80–76 Narrow edge
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Tests 71 · 1 test Owners 80 · 16 reviews
Best test result: #2 of 11 in 2019 19 Inch Performance Winter Tyre Test (dry handling)
Tests 73 · 1 test Owners 88 · 55 reviews
Best test result: #1 of 8 in 2017 AC Winter Tyre Test - 185/65 R15 (wet braking)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 73 | 75 |
| Reviews found online | 79 | 87 |
WinterContact TS 860 S: 60% × 73 + 40% × 79.4 = 76
Alpin A4: 60% × 75.4 + 40% × 86.6 = 80
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 70 | 75 |
| Reviews found online | 83 | 93 |
WinterContact TS 860 S: 60% × 70 + 40% × 82.9 = 75
Alpin A4: 60% × 75.3 + 40% × 93.2 = 82
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 71 | 69 |
| Reviews found online | 78 | 82 |
WinterContact TS 860 S: 60% × 70.5 + 40% × 78.1 = 74
Alpin A4: 60% × 69 + 40% × 81.9 = 74
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 72 (est.) |
| Reviews found online | 81 | 88 |
WinterContact TS 860 S: 40% × 71.2 (est.) + 60% × 81.2 = 77
Alpin A4: 40% × 72.5 (est.) + 60% × 87.5 = 81
No road tests of comfort for WinterContact TS 860 S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Alpin A4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 73 | – |
| Reviews found online | ≈ 66 (est.) | – |
WinterContact TS 860 S: 60% × 73.2 + 40% × 66.3 (est.) = 70
No owner ratings of noise for WinterContact TS 860 S. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 75 (est.) |
| Reviews found online | 80 | 89 |
WinterContact TS 860 S: 60% × 71.2 (est.) + 40% × 79.7 = 75
Alpin A4: 60% × 74.5 (est.) + 40% × 89 = 80
No road tests of treadwear for WinterContact TS 860 S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for Alpin A4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Reviews found online | 84 | 91 |
| Source | WinterContact TS 860 S | Alpin A4 |
|---|---|---|
| Professional tests (TWG score) · 1 / 1 tests | 77 | 64 |
| Category | Continental WinterContact TS 860 S | Michelin Alpin A4 |
|---|---|---|
| Relative Score | 76 | 80 |
| Dry | 76 | 80 |
| Wet | 75 | 82 |
| Snow | 74 | 74 |
| Comfort | 77 | 81 |
| Noise | 70 | – |
| Treadwear | 75 | 80 |
| Handling (owners) | 84 | 91 |
| Efficiency | 77 | 64 |
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.
WinterContact TS 860 S
Alpin A4
Only categories both tires have data for count toward the headline score.
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.
| Discipline | Category | WinterContact TS 860 S | Alpin A4 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 98% #4/11 · 2019 19 Inch Performance Winter Tyre Test | 98% #2/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Straight Aquaplaning | Wet | 90% #10/11 · 2019 19 Inch Performance Winter Tyre Test | 96% #2/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Wet Braking | Wet | 91% #6/11 · 2019 19 Inch Performance Winter Tyre Test | 100% #1/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Wet Handling | Wet | 97% #5/11 · 2019 19 Inch Performance Winter Tyre Test | 99% #2/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Snow Braking | Snow | 96% #7/11 · 2019 19 Inch Performance Winter Tyre Test | 98% #3/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Rolling Resistance | Efficiency | 100% #1/11 · 2019 19 Inch Performance Winter Tyre Test | 88% #8/8 · 2017 AC Winter Tyre Test - 185/65 R15 | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #4/11 2019 19 Inch Performance Winter Tyre Test | #6/16 2019 ADAC 185/65 R15 Winter Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Continental WinterContact TS 860 S | B · Michelin Alpin A4 |
|---|---|---|
| Category | Winter | Winter |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 92 | 9 |
| Rim diameters | 16″ – 23″ | 14″ – 17″ |
| Tread depth | 10 - 11/32″ | — |
| Sidewall | Black Side Wall | — |
| Max pressure | 50 - 51 psi | — |
| Sizes in common | 1 | 1 |
Continental WinterContact TS 860 S
Michelin Alpin A4
Narrow edge: Michelin Alpin A4 — better wet, handling and treadwear. Pick the Continental WinterContact TS 860 S if efficiency matters most to you. Continental WinterContact TS 860 S rests on little evidence so far (1 test, 16 reviews), so read this result as provisional.
Continental WinterContact TS 860 S scores 77 vs 64 on efficiency.
Michelin Alpin A4 scores 82 vs 75 on wet.
Michelin Alpin A4 scores 91 vs 84 on handling.
Michelin Alpin A4 scores 80 vs 75 on treadwear.
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Michelin Alpin A4, 82 vs 75 on our wet score.
Michelin Alpin A4, 80 vs 76 on our dry score.
Neither, by our numbers: 74 vs 74 on the snow score, within 3 points.
Michelin Alpin A4, 81 vs 77 on our comfort score.
Michelin Alpin A4, 80 vs 75 on our treadwear score.
Continental WinterContact TS 860 S, 77 vs 64 on our efficiency 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