Tests – · none yet Owners 65 · 17 reviews
Head-to-head
Updated
Firestone Winterforce 2 UV vs Dunlop SP Winter Sport 4D — 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 0 + 0 road tests and 17 + 38 owner reviews. How we score
SP Winter Sport 4D is ahead, 78–68
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Tests – · none yet Owners 82 · 38 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
66
Dry
SP Winter Sport 4D +1379Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 67 (est.) ≈ 75 (est.) Reviews found online 64 84 Winterforce 2 UV: 60% × 66.5 (est.) + 40% × 64.4 = 66
SP Winter Sport 4D: 60% × 74.9 (est.) + 40% × 84.2 = 79
No road tests of dry for Winterforce 2 UV. 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 SP Winter Sport 4D. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
-
71
Wet
SP Winter Sport 4D +1384Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 71 (est.) ≈ 81 (est.) Reviews found online 71 89 Winterforce 2 UV: 60% × 70.7 (est.) + 40% × 70.6 = 71
SP Winter Sport 4D: 60% × 81 (est.) + 40% × 89.2 = 84
No road tests of wet for Winterforce 2 UV. 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 SP Winter Sport 4D. 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
Winterforce 2 UV +271Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 72 (est.) ≈ 71 (est.) Reviews found online 74 71 Winterforce 2 UV: 60% × 71.8 (est.) + 40% × 73.6 = 73
SP Winter Sport 4D: 60% × 70.8 (est.) + 40% × 70.9 = 71
No road tests of snow for Winterforce 2 UV. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
No road tests of snow for SP Winter Sport 4D. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
-
62
Comfort
SP Winter Sport 4D +1880Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 67 (est.) ≈ 72 (est.) Reviews found online 58 85 Winterforce 2 UV: 40% × 67.1 (est.) + 60% × 58 = 62
SP Winter Sport 4D: 40% × 72 (est.) + 60% × 85.1 = 80
No road tests of comfort for Winterforce 2 UV or SP Winter Sport 4D. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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62
Noise
No comparison–Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 55 – Winterforce 2 UV: 60% × 66.6 (est.) + 40% × 54.5 = 62
No road tests of noise for Winterforce 2 UV. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
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61
Treadwear
SP Winter Sport 4D +1576Why this score
Source Winterforce 2 UV SP Winter Sport 4D Professional tests (TWG score) ≈ 63 (est.) ≈ 72 (est.) Reviews found online 59 82 Winterforce 2 UV: 60% × 63.4 (est.) + 40% × 58.5 = 61
SP Winter Sport 4D: 60% × 71.6 (est.) + 40% × 81.7 = 76
No road tests of treadwear for Winterforce 2 UV. 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 SP Winter Sport 4D. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
-
–
Handling (owners)
No comparison85Why this score
Source Winterforce 2 UV SP Winter Sport 4D Reviews found online – 85
Scores at a glance
| Category | Firestone Winterforce 2 UV | Dunlop SP Winter Sport 4D |
|---|---|---|
| Relative Score | 68 | 78 |
| Dry | 66 | 79 |
| Wet | 71 | 84 |
| Snow | 73 | 71 |
| Comfort | 62 | 80 |
| Noise | 62 | – |
| Treadwear | 61 | 76 |
| Handling (owners) | – | 85 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Recomputed
Headline score
68
/ 100
Winterforce 2 UV
78
/ 100
SP Winter Sport 4D
Only categories both tires have data for count toward the headline score.
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.
| Discipline | Category | Winterforce 2 UV | SP Winter Sport 4D | Δ | Head-to-head |
|---|---|---|---|---|---|
| Also published by the testers (not in the score) | |||||
| Overall Ranking | Overall | #8/8 2022 Consumer Reports Winter/Snow Truck/SUV Tires | #3/48 2014 50 Winter Tyre Braking Overview | – | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Winterforce 2 UV
Not enough owner reviews yet to extract themes.
Tire B SP Winter Sport 4D
Pros
- Exceptional grip and stability in wet, slushy, and cold dry conditions.
- Remarkably low road noise, often quieter than summer tire counterparts.
- High level of ride comfort and refined road manners.
Cons
- Noticeable 'squirm' or lack of sharpness during high-speed cornering.
- Occasional reports of understeer in specific wet or icy conditions.
- Some users noted a 'hard' ride quality compared to previous iterations like the 3D.
Specs side by side
| Attribute | A · Firestone Winterforce 2 UV | B · Dunlop SP Winter Sport 4D |
|---|---|---|
| Category | Winter tire | Winter |
| Vehicle type | SUV and 4x4 | Passenger Car / Crossover |
| Sizes available | 30 | 20 |
| Rim diameters | 15″ – 18″ | 16″ – 21″ |
| Tread depth | 12/32″ | — |
| Sidewall | Blackwall | — |
| Max pressure | 44 psi | — |
| Sizes in common | 1 | 1 |
Which one should you actually buy?
68
/ 100
Firestone Winterforce 2 UV
78
/ 100
Dunlop SP Winter Sport 4D
Winner: Dunlop SP Winter Sport 4D — better comfort, treadwear and dry. Where the Firestone Winterforce 2 UV is ahead, it is by less than 3 points. Firestone Winterforce 2 UV rests on little evidence so far (0 tests, 17 reviews), so read this result as provisional.
Pick tire B
You want the most comfortable ride
Dunlop SP Winter Sport 4D scores 80 vs 62 on comfort.
Pick tire B
You want the longest tread life
Dunlop SP Winter Sport 4D scores 76 vs 61 on treadwear.
Pick tire B
You want the most grip on dry roads
Dunlop SP Winter Sport 4D scores 79 vs 66 on dry.
Pick tire B
Your priority is wet-weather safety
Dunlop SP Winter Sport 4D scores 84 vs 71 on wet.
Tire A · Firestone Winterforce 2 UV
Tire B · Dunlop SP Winter Sport 4D
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Winterforce 2 UV or SP Winter Sport 4D?
Which is better in the wet, Winterforce 2 UV or SP Winter Sport 4D?
Dunlop SP Winter Sport 4D, 84 vs 71 on our wet score.
Which grips better on dry roads, Winterforce 2 UV or SP Winter Sport 4D?
Dunlop SP Winter Sport 4D, 79 vs 66 on our dry score.
Which is better in snow, Winterforce 2 UV or SP Winter Sport 4D?
Neither, by our numbers: 73 vs 71 on the snow score, within 3 points.
Which is more comfortable, Winterforce 2 UV or SP Winter Sport 4D?
Dunlop SP Winter Sport 4D, 80 vs 62 on our comfort score.
Which lasts longer, Winterforce 2 UV or SP Winter Sport 4D?
Dunlop SP Winter Sport 4D, 76 vs 61 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