Tests 79 · 14 tests Owners 84 · 192 reviews
Best test result: #1 of 20 in 2020 Auto Bild Summer 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 14 + 5 road tests and 192 + 974 owner reviews. How we score
Ultrac Vorti is ahead, 81–59
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests 79 · 14 tests Owners 84 · 192 reviews
Best test result: #1 of 20 in 2020 Auto Bild Summer Tyre Test (dry handling)
Tests 58 · 5 tests Owners 63 · 974 reviews
Best test result: #3 of 16 in 2024 ADAC All Season Tyre Test (snow braking)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 13 / 5 tests | 83 | 55 |
| Reviews found online | 90 | 66 |
Ultrac Vorti: 60% × 83.4 + 40% × 89.6 = 86
BluEarth-4S AW21: 60% × 54.9 + 40% × 65.8 = 59
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 13 / 5 tests | 84 | 71 |
| Reviews found online | 85 | 71 |
Ultrac Vorti: 60% × 83.6 + 40% × 84.7 = 84
BluEarth-4S AW21: 60% × 71.1 + 40% × 71 = 71
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · – / 2 tests | – | 67 |
| Reviews found online | – | 68 |
BluEarth-4S AW21: 60% × 66.9 + 40% × 68.1 = 67
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 4 / – tests | 77 | ≈ 68 (est.) |
| Reviews found online | 82 | 61 |
Ultrac Vorti: 40% × 77.4 + 60% × 81.6 = 80
BluEarth-4S AW21: 40% × 67.7 (est.) + 60% × 61.1 = 64
No road tests of comfort for BluEarth-4S AW21. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 9 / 2 tests | 71 | 44 |
| Reviews found online | ≈ 67 (est.) | ≈ 67 (est.) |
Ultrac Vorti: 60% × 70.8 + 40% × 66.6 (est.) = 69
BluEarth-4S AW21: 60% × 43.8 + 40% × 66.6 (est.) = 53
No owner ratings of noise for Ultrac Vorti or BluEarth-4S AW21. 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 | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 3 / 1 tests | 72 | 46 |
| Reviews found online | 78 | 51 |
Ultrac Vorti: 60% × 71.8 + 40% × 78.2 = 74
BluEarth-4S AW21: 60% × 46.2 + 40% × 50.9 = 48
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Reviews found online | 88 | 61 |
| Source | Ultrac Vorti | BluEarth-4S AW21 |
|---|---|---|
| Professional tests (TWG score) · 9 / 2 tests | 25 | 42 |
| Category | Vredestein Ultrac Vorti | Yokohama BluEarth-4S AW21 |
|---|---|---|
| Relative Score | 81 | 59 |
| Dry | 86 | 59 |
| Wet | 84 | 71 |
| Snow | – | 67 |
| Comfort | 80 | 64 |
| Noise | 69 | 53 |
| Treadwear | 74 | 48 |
| Handling (owners) | 88 | 61 |
| Efficiency | 25 | 42 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. 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.
Ultrac Vorti
BluEarth-4S AW21
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 | Ultrac Vorti | BluEarth-4S AW21 | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 95% #7/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 86% #15/16 · 2024 ADAC All Season Tyre Test | – | Different tests |
| Dry Handling | Dry | 98% #5/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 99% #3/7 · 2025 Motor All Season Tyre Test | – | Different tests |
| Curved Aquaplaning | Wet | 92% #4/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 78% #12/16 · 2024 ADAC All Season Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 97% #7/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 87% #5/7 · 2025 Motor All Season Tyre Test | – | Different tests |
| Wet Braking | Wet | 90% #6/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 92% #11/16 · 2024 ADAC All Season Tyre Test | – | Different tests |
| Wet Handling | Wet | 96% #5/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 99% #2/7 · 2025 Motor All Season Tyre Test | – | Different tests |
| Noise | Noise | 99% #5/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 96% #7/7 · 2025 Motor All Season Tyre Test | – | Different tests |
| Wear | Treadwear | 91% #8/16 · 2020 ADAC 18 Inch Summer Tyre Test | 56% #15/16 · 2024 ADAC All Season Tyre Test | – | Different tests |
| Rolling Resistance | Efficiency | 80% #14/15 · 2021 Auto Bild 19 inch Summer Tyre Test | 78% #7/7 · 2025 Motor All Season Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Tyre Weight | Other | 84% #10/10 · 2020 UHP, UUHP and Track Day Tyre Test | 78% #16/16 · 2024 ADAC All Season Tyre Test | – | Different tests |
| Overall Ranking | Overall | #6/15 2021 Auto Bild 19 inch Summer Tyre Test | #6/7 2025 Motor All Season Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Vredestein Ultrac Vorti | B · Yokohama BluEarth-4S AW21 |
|---|---|---|
| Category | Summer | All Season |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 42 | 104 |
| Rim diameters | 18″ – 24″ | 14″ – 22″ |
| Sizes in common | 18 | 18 |
Vredestein Ultrac Vorti
Yokohama BluEarth-4S AW21
Winner: Vredestein Ultrac Vorti — better dry, handling and treadwear. Pick the Yokohama BluEarth-4S AW21 if efficiency matters most to you.
Vredestein Ultrac Vorti scores 86 vs 59 on dry.
Vredestein Ultrac Vorti scores 88 vs 61 on handling.
Vredestein Ultrac Vorti scores 74 vs 48 on treadwear.
Yokohama BluEarth-4S AW21 scores 42 vs 25 on efficiency.
TireWheelGuide may earn a commission from purchases made through these links.
Vredestein Ultrac Vorti, 84 vs 71 on our wet score.
Vredestein Ultrac Vorti, 86 vs 59 on our dry score.
Vredestein Ultrac Vorti, 69 vs 53 on our noise score.
Vredestein Ultrac Vorti, 80 vs 64 on our comfort score.
Vredestein Ultrac Vorti, 74 vs 48 on our treadwear score.
Yokohama BluEarth-4S AW21, 42 vs 25 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