Tests – · none yet Owners 72 · 6 reviews
Dunlop SP Sport 01 AS looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Kumho Ecsta XT KU37 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Dunlop SP Sport 01 AS vs Kumho Ecsta XT KU37 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 6 + 11 owner reviews. How we score
SP Sport 01 AS is ahead, 73–56
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Tests – · none yet Owners 51 · 11 reviews
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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73
Dry
SP Sport 01 AS +1756Why this score
Source SP Sport 01 AS Ecsta XT KU37 Professional tests (TWG score) ≈ 71 (est.) ≈ 60 (est.) Reviews found online 76 49 SP Sport 01 AS: 60% × 71.1 (est.) + 40% × 76.2 = 73
Ecsta XT KU37: 60% × 60.2 (est.) + 40% × 49.1 = 56
No road tests of dry for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
No road tests of dry for Ecsta XT KU37. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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72
Wet
SP Sport 01 AS +1557Why this score
Source SP Sport 01 AS Ecsta XT KU37 Professional tests (TWG score) ≈ 72 (est.) ≈ 60 (est.) Reviews found online 73 53 SP Sport 01 AS: 60% × 71.8 (est.) + 40% × 73.3 = 72
Ecsta XT KU37: 60% × 60.3 (est.) + 40% × 52.8 = 57
No road tests of wet for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
No road tests of wet for Ecsta XT KU37. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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58
Snow
No comparison–Why this score
Source SP Sport 01 AS Ecsta XT KU37 Professional tests (TWG score) ≈ 63 (est.) – Reviews found online 50 – SP Sport 01 AS: 60% × 63.3 (est.) + 40% × 50.1 = 58
No road tests of snow for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).
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73
Comfort
SP Sport 01 AS +1261Why this score
Source SP Sport 01 AS Ecsta XT KU37 Professional tests (TWG score) ≈ 70 (est.) ≈ 66 (est.) Reviews found online 77 52 SP Sport 01 AS: 60% × 70.4 (est.) + 40% × 76.5 = 73
Ecsta XT KU37: 60% × 66.2 (est.) + 40% × 52.4 = 61
No road tests of comfort for SP Sport 01 AS or Ecsta XT KU37. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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72
Treadwear
SP Sport 01 AS +1557Why this score
Source SP Sport 01 AS Ecsta XT KU37 Professional tests (TWG score) ≈ 69 (est.) ≈ 61 (est.) Reviews found online 77 51 SP Sport 01 AS: 60% × 69 (est.) + 40% × 76.5 = 72
Ecsta XT KU37: 60% × 61.2 (est.) + 40% × 51.4 = 57
No road tests of treadwear for SP Sport 01 AS. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
No road tests of treadwear for Ecsta XT KU37. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
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78
Handling (owners)
SP Sport 01 AS +2949Why this score
Source SP Sport 01 AS Ecsta XT KU37 Reviews found online 78 49
Scores at a glance
| Category | Dunlop SP Sport 01 AS | Kumho Ecsta XT KU37 |
|---|---|---|
| Relative Score | 73 | 56 |
| Dry | 73 | 56 |
| Wet | 72 | 57 |
| Snow | 58 | – |
| Comfort | 73 | 61 |
| Treadwear | 72 | 57 |
| Handling (owners) | 78 | 49 |
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
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
73
/ 100
SP Sport 01 AS
56
/ 100
Ecsta XT KU37
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A SP Sport 01 AS
Pros
- Exceptionally quiet, smooth, and comfortable ride quality
- Surprising and reliable traction and handling in deep snow
- Good overall braking and grip performance compared to previous tires
Cons
- Reports of weak sidewalls leading to premature damage
- High cost relative to longevity when durability issues arise
Tire B Ecsta XT KU37
Pros
- Excellent value for money compared to premium brands
- Low road noise levels
- Good dry-weather stability and cornering
Cons
- Inconsistent wet-weather grip and confidence
- Lack of steering feedback and road feel
- Tendency to lose traction under hard acceleration
Specs side by side
| Attribute | A · Dunlop SP Sport 01 AS | B · Kumho Ecsta XT KU37 |
|---|---|---|
| Category | All Season | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
73
/ 100
Dunlop SP Sport 01 AS
56
/ 100
Kumho Ecsta XT KU37
Winner: Dunlop SP Sport 01 AS — better handling, dry and wet. It leads or ties in every category we score. Dunlop SP Sport 01 AS rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional. Kumho Ecsta XT KU37 rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional.
Pick tire A
You enjoy sharp, responsive handling
Dunlop SP Sport 01 AS scores 78 vs 49 on handling.
Pick tire A
You want the most grip on dry roads
Dunlop SP Sport 01 AS scores 73 vs 56 on dry.
Pick tire A
Your priority is wet-weather safety
Dunlop SP Sport 01 AS scores 72 vs 57 on wet.
Pick tire A
You want the longest tread life
Dunlop SP Sport 01 AS scores 72 vs 57 on treadwear.
Tire A · Dunlop SP Sport 01 AS
Tire B · Kumho Ecsta XT KU37
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SP Sport 01 AS or Ecsta XT KU37?
Which is better in the wet, SP Sport 01 AS or Ecsta XT KU37?
Dunlop SP Sport 01 AS, 72 vs 57 on our wet score.
Which grips better on dry roads, SP Sport 01 AS or Ecsta XT KU37?
Dunlop SP Sport 01 AS, 73 vs 56 on our dry score.
Which is more comfortable, SP Sport 01 AS or Ecsta XT KU37?
Dunlop SP Sport 01 AS, 73 vs 61 on our comfort score.
Which lasts longer, SP Sport 01 AS or Ecsta XT KU37?
Dunlop SP Sport 01 AS, 72 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