Tests 73 · 7 tests Owners 79 · 4 reviews
Best test result: #2 of 20 in 2021 Auto Bild Winter Tyre Test (snow 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 7 + 11 road tests and 4 + 29 owner reviews. How we score
I Fit+ leads, 75–72 Narrow edge
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Tests 73 · 7 tests Owners 79 · 4 reviews
Best test result: #2 of 20 in 2021 Auto Bild Winter Tyre Test (snow handling)
Tests 73 · 11 tests Owners 69 · 29 reviews
Best test result: #1 of 15 in 2022 Auto Bild All Season Tyre Test (wear)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 3 / 11 tests | 71 | 70 |
| Reviews found online | 79 | 67 |
I Fit+: 60% × 70.9 + 40% × 78.9 = 74
N Blue 4 Season: 60% × 70.4 + 40% × 66.6 = 69
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 7 / 11 tests | 76 | 74 |
| Reviews found online | 84 | 75 |
I Fit+: 60% × 75.9 + 40% × 84.1 = 79
N Blue 4 Season: 60% × 74.1 + 40% × 75.4 = 75
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 6 / 7 tests | 79 | 67 |
| Reviews found online | 81 | 70 |
I Fit+: 60% × 78.9 + 40% × 80.9 = 80
N Blue 4 Season: 60% × 67.1 + 40% × 69.6 = 68
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 70 (est.) |
| Reviews found online | 78 | 71 |
I Fit+: 40% × 70.7 (est.) + 60% × 77.7 = 75
N Blue 4 Season: 40% × 69.5 (est.) + 60% × 71.2 = 71
No road tests of comfort for I Fit+ or N Blue 4 Season. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 3 / 7 tests | 76 | 84 |
| Reviews found online | ≈ 67 (est.) | ≈ 67 (est.) |
I Fit+: 60% × 76.3 + 40% × 66.6 (est.) = 72
N Blue 4 Season: 60% × 84.3 + 40% × 66.6 (est.) = 77
No owner ratings of noise for I Fit+ or N Blue 4 Season. 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 | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 3 / 6 tests | 64 | 76 |
| Reviews found online | 73 | 65 |
I Fit+: 60% × 64 + 40% × 73.4 = 68
N Blue 4 Season: 60% × 76 + 40% × 65.1 = 72
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Reviews found online | 80 | 72 |
| Source | I Fit+ | N Blue 4 Season |
|---|---|---|
| Professional tests (TWG score) · 3 / 7 tests | 73 | 29 |
| Category | Laufenn I Fit+ | Nexen N Blue 4 Season |
|---|---|---|
| Relative Score | 75 | 72 |
| Dry | 74 | 69 |
| Wet | 79 | 75 |
| Snow | 80 | 68 |
| Comfort | 75 | 71 |
| Noise | 72 | 77 |
| Treadwear | 68 | 72 |
| Handling (owners) | 80 | 72 |
| Efficiency | 73 | 29 |
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.
I Fit+
N Blue 4 Season
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 | I Fit+ | N Blue 4 Season | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 94% #10/20 · 2023 Auto Bild Winter Tyre Test | 91% #11/35 · 2022 All Season Tyre Market Overview | – | Different tests |
| Dry Handling | Dry | 97% #18/20 · 2023 Auto Bild Winter Tyre Test | 97% #15/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 93% #19/20 · 2023 Auto Bild Winter Tyre Test | 94% #10/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Wet Braking | Wet | 84% #38/55 · 2024 Winter 55 Tyre Braking Test | 81% #18/35 · 2022 All Season Tyre Market Overview | – | Different tests |
| Wet Handling | Wet | 95% #13/20 · 2023 Auto Bild Winter Tyre Test | 96% #11/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Snow Braking | Snow | 95% #10/31 · 2023 Winter Tyre Test 54 Set Braking Test | 96% #9/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Snow Handling | Snow | 98% #9/20 · 2023 Auto Bild Winter Tyre Test | 96% #8/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Snow Traction | Snow | 96% #7/20 · 2023 Auto Bild Winter Tyre Test | 92% #9/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Noise | Noise | 98% #8/20 · 2023 Auto Bild Winter Tyre Test | 99% #6/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Wear | Treadwear | 75% #17/20 · 2023 Auto Bild Winter Tyre Test | 100% #1/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Rolling Resistance | Efficiency | 93% #4/20 · 2023 Auto Bild Winter Tyre Test | 78% #14/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Price | Cost | 93% #3/20 · 2021 Auto Bild Winter Tyre Test | 100% #1/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Total Cost of Ownership | Cost | #7/20 2023 Auto Bild Winter Tyre Test | #6/15 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Value | Cost | 79% #8/20 · 2023 Auto Bild Winter Tyre Test | 100% #1/15 · 2022 Auto Bild All Season Tyre Test | – | Different tests |
| Overall Ranking | Overall | #38/55 2024 Winter 55 Tyre Braking Test | #14/35 2022 All Season Tyre Market Overview | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · Laufenn I Fit+ | B · Nexen N Blue 4 Season |
|---|---|---|
| Category | Winter | All Season |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 61 | 56 |
| Rim diameters | 13″ – 19″ | 13″ – 19″ |
| Sizes in common | 45 | 45 |
Laufenn I Fit+
Nexen N Blue 4 Season
Narrow edge: Laufenn I Fit+ — better efficiency, snow and handling. Pick the Nexen N Blue 4 Season if noise and treadwear matter most to you.
Laufenn I Fit+ scores 73 vs 29 on efficiency.
Laufenn I Fit+ scores 80 vs 68 on snow.
Laufenn I Fit+ scores 80 vs 72 on handling.
Laufenn I Fit+ scores 74 vs 69 on dry.
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Laufenn I Fit+, 79 vs 75 on our wet score.
Laufenn I Fit+, 74 vs 69 on our dry score.
Laufenn I Fit+, 80 vs 68 on our snow score.
Nexen N Blue 4 Season, 77 vs 72 on our noise score.
Laufenn I Fit+, 75 vs 71 on our comfort score.
Nexen N Blue 4 Season, 72 vs 68 on our treadwear score.
Laufenn I Fit+, 73 vs 29 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