Tests – · none yet Owners 49 · 897 reviews
Head-to-head
Updated
Dunlop SP Sport 01 vs Sumitomo HTR Z III — 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 + 1 road tests and 897 + 42 owner reviews. How we score
HTR Z III is ahead, 61–55
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Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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57
Dry
HTR Z III +1067Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) ≈ 61 (est.) ≈ 68 (est.) Reviews found online 51 67 SP Sport 01: 60% × 61 (est.) + 40% × 51.1 = 57
HTR Z III: 60% × 67.6 (est.) + 40% × 67.1 = 67
No road tests of dry for SP Sport 01. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
-
55
Wet
HTR Z III +863Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) ≈ 59 (est.) ≈ 65 (est.) Reviews found online 50 60 SP Sport 01: 60% × 59.3 (est.) + 40% × 49.8 = 55
HTR Z III: 60% × 65 (est.) + 40% × 60.2 = 63
No road tests of wet for SP Sport 01. 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 HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
-
49
Snow
SP Sport 01 +1237Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) ≈ 59 (est.) ≈ 53 (est.) Reviews found online 35 14 SP Sport 01: 60% × 59.1 (est.) + 40% × 34.5 = 49
HTR Z III: 60% × 52.6 (est.) + 40% × 14 = 37
No road tests of snow for SP Sport 01. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
No road tests of snow for HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
-
54
Comfort
HTR Z III +1266Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) ≈ 64 (est.) ≈ 68 (est.) Reviews found online 47 64 SP Sport 01: 40% × 64.2 (est.) + 60% × 46.6 = 54
HTR Z III: 40% × 67.8 (est.) + 60% × 64.3 = 66
No road tests of comfort for SP Sport 01. 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 HTR Z III. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
-
61
Noise
HTR Z III +465Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) ≈ 66 (est.) ≈ 66 (est.) Reviews found online 52 62 SP Sport 01: 60% × 66.4 (est.) + 40% × 52.4 = 61
HTR Z III: 60% × 66.4 (est.) + 40% × 62.3 = 65
No road tests of noise for SP Sport 01 or HTR Z III. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
-
57
Treadwear
HTR Z III +966Why this score
Source SP Sport 01 HTR Z III Professional tests (TWG score) · – / 1 tests ≈ 61 (est.) 70 Reviews found online 51 59 SP Sport 01: 60% × 60.9 (est.) + 40% × 50.9 = 57
HTR Z III: 60% × 70.2 + 40% × 59.1 = 66
No road tests of treadwear for SP Sport 01. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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53
Handling (owners)
HTR Z III +1265Why this score
Source SP Sport 01 HTR Z III Reviews found online 53 65
Scores at a glance
| Category | Dunlop SP Sport 01 | Sumitomo HTR Z III |
|---|---|---|
| Relative Score | 55 | 61 |
| Dry | 57 | 67 |
| Wet | 55 | 63 |
| Snow | 49 | 37 |
| Comfort | 54 | 66 |
| Noise | 61 | 65 |
| Treadwear | 57 | 66 |
| Handling (owners) | 53 | 65 |
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
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
55
/ 100
SP Sport 01
61
/ 100
HTR Z III
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A SP Sport 01
Pros
- Precise steering response and sharp turn-in
- Good dry grip and cornering stability
- Comfortable and relatively quiet ride when new
Cons
- Noticeable increase in road noise and droning as the tire wears
- Deteriorating wet weather traction and reduced grip once tread wears below 4mm
- Rapid or uneven tread wear reported by some heavier vehicle owners
Tire B HTR Z III
Pros
- Excellent price-to-performance ratio
- Strong dry handling and steering feedback
- Quiet and comfortable ride quality
Cons
- Inconsistent wet-weather side grip during cornering
- Limited traction under heavy acceleration on high-horsepower vehicles
- Not suitable for winter or freezing conditions
Specs side by side
| Attribute | A · Dunlop SP Sport 01 | B · Sumitomo HTR Z III |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Tread depth | — | 10/32″ |
| UTQG | 280 A A | 300 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | — | 50 psi |
Which one should you actually buy?
55
/ 100
Dunlop SP Sport 01
61
/ 100
Sumitomo HTR Z III
Winner: Sumitomo HTR Z III — better comfort, handling and dry. Pick the Dunlop SP Sport 01 if snow matters most to you.
Pick tire A
You drive through snowy winters
Dunlop SP Sport 01 scores 49 vs 37 on snow.
Pick tire B
You want the most comfortable ride
Sumitomo HTR Z III scores 66 vs 54 on comfort.
Pick tire B
You enjoy sharp, responsive handling
Sumitomo HTR Z III scores 65 vs 53 on handling.
Pick tire B
You want the most grip on dry roads
Sumitomo HTR Z III scores 67 vs 57 on dry.
Tire A · Dunlop SP Sport 01
Tire B · Sumitomo HTR Z III
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SP Sport 01 or HTR Z III?
Which is better in the wet, SP Sport 01 or HTR Z III?
Sumitomo HTR Z III, 63 vs 55 on our wet score.
Which grips better on dry roads, SP Sport 01 or HTR Z III?
Sumitomo HTR Z III, 67 vs 57 on our dry score.
Which is better in snow, SP Sport 01 or HTR Z III?
Dunlop SP Sport 01, 49 vs 37 on our snow score.
Which is quieter, SP Sport 01 or HTR Z III?
Sumitomo HTR Z III, 65 vs 61 on our noise score.
Which is more comfortable, SP Sport 01 or HTR Z III?
Sumitomo HTR Z III, 66 vs 54 on our comfort score.
Which lasts longer, SP Sport 01 or HTR Z III?
Sumitomo HTR Z III, 66 vs 57 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