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Head-to-head Updated

Cooper Zeon CS8 vs Kumho Ecsta PS31 — 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 12 + 0 road tests and 17 + 259 owner reviews. How we score

Too close to call: Zeon CS8 and Ecsta PS31 are level at 66.

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Cooper Zeon CS8
Tire ACooper

Zeon CS8

Summer

± 6

Tests 61 · 12 tests Owners 70 · 17 reviews

Best test result: #1 of 16 in 2018 Test World Summer Tyre Test (noise)

Kumho Ecsta PS31
Tire BKumho

Ecsta PS31

Summer

± 7

Tests – · none yet Owners 63 · 259 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 61

    Dry

    Ecsta PS31 +2
    63
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score) · 12 / – tests54≈ 65 (est.)
    Reviews found online7260

    Zeon CS8: 60% × 53.6 + 40% × 72.2 = 61

    Ecsta PS31: 60% × 64.6 (est.) + 40% × 59.7 = 63

    No road tests of dry for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 73

    Wet

    Zeon CS8 +5
    68
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score) · 12 / – tests73≈ 69 (est.)
    Reviews found online7468

    Zeon CS8: 60% × 73.3 + 40% × 73.6 = 73

    Ecsta PS31: 60% × 69 (est.) + 40% × 67.6 = 68

    No road tests of wet for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    58
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score)–≈ 64 (est.)
    Reviews found online–49

    Ecsta PS31: 60% × 63.7 (est.) + 40% × 49.2 = 58

    No road tests of snow for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 70

    Comfort

    Zeon CS8 +5
    65
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score)≈ 69 (est.)≈ 68 (est.)
    Reviews found online7064

    Zeon CS8: 40% × 68.9 (est.) + 60% × 70 = 70

    Ecsta PS31: 40% × 67.7 (est.) + 60% × 63.9 = 65

    No road tests of comfort for Zeon CS8. 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 Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 72

    Noise

    Zeon CS8 +6
    66
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score) · 5 / – tests76≈ 66 (est.)
    Reviews found online≈ 66 (est.)66

    Zeon CS8: 60% × 75.7 + 40% × 66.4 (est.) = 72

    Ecsta PS31: 60% × 66.4 (est.) + 40% × 66.3 = 66

    No owner ratings of noise for Zeon CS8. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

    No road tests of noise for Ecsta PS31. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 58

    Treadwear

    Ecsta PS31 +7
    65
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score) · 3 / – tests52≈ 66 (est.)
    Reviews found online6665

    Zeon CS8: 60% × 52.2 + 40% × 66 = 58

    Ecsta PS31: 60% × 65.9 (est.) + 40% × 64.8 = 65

    No road tests of treadwear for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 69

    Handling (owners)

    Zeon CS8 +1
    68
    Why this score
    SourceZeon CS8Ecsta PS31
    Reviews found online6968
  8. 42

    Efficiency

    No comparison
    –
    Why this score
    SourceZeon CS8Ecsta PS31
    Professional tests (TWG score) · 5 / – tests42–
Scores at a glance
CategoryCooper Zeon CS8Kumho Ecsta PS31
Relative Score 66 66
Dry 61 63
Wet 73 68
Snow – 58
Comfort 70 65
Noise 72 66
Treadwear 58 65
Handling (owners) 69 68
Efficiency 42 –

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
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not 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
± 6

Zeon CS8

± 7

Ecsta PS31

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 Zeon CS8

Pros

  • Excellent wet-weather grip and braking performance
  • High value-for-money proposition compared to premium competitors
  • Quiet and comfortable ride quality

Cons

  • Reports of premature sidewall perishing and cracking
  • Inconsistent tread life with some users experiencing rapid wear
  • Increased road noise as the tire reaches the end of its life
All owner themes in the Zeon CS8 review

Tire B Ecsta PS31

Pros

  • Excellent price-to-performance ratio
  • High levels of ride comfort and low road noise
  • Strong dry traction for daily and spirited street driving

Cons

  • Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
  • Inconsistent wet weather performance reported by some users, particularly in deep standing water
  • Tread life can be shorter than expected for some driving styles
All owner themes in the Ecsta PS31 review

Specs side by side

Attribute A · Cooper Zeon CS8 B · Kumho Ecsta PS31
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—21
Rim diameters—15″ – 18″
Tread depth—10/32″
UTQG—460 A A
Sidewall—Blackwall
Max pressure—51 psi

Which one should you actually buy?

Cooper Zeon CS8

Kumho Ecsta PS31

Too close to call: Cooper Zeon CS8 and Kumho Ecsta PS31 are within 2 points overall. Cooper Zeon CS8 is stronger on noise, wet and comfort. Kumho Ecsta PS31 is stronger on treadwear.

Pick tire B You want the longest tread life

Kumho Ecsta PS31 scores 65 vs 58 on treadwear.

Pick tire A You want a quieter cabin

Cooper Zeon CS8 scores 72 vs 66 on noise.

Pick tire A Your priority is wet-weather safety

Cooper Zeon CS8 scores 73 vs 68 on wet.

Pick tire A You want the most comfortable ride

Cooper Zeon CS8 scores 70 vs 65 on comfort.

Tire A · Cooper Zeon CS8
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Tire B · Kumho Ecsta PS31
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Zeon CS8 or Ecsta PS31?

Which is better in the wet, Zeon CS8 or Ecsta PS31?

Cooper Zeon CS8, 73 vs 68 on our wet score.

Which grips better on dry roads, Zeon CS8 or Ecsta PS31?

Neither, by our numbers: 61 vs 63 on the dry score, within 3 points.

Which is quieter, Zeon CS8 or Ecsta PS31?

Cooper Zeon CS8, 72 vs 66 on our noise score.

Which is more comfortable, Zeon CS8 or Ecsta PS31?

Cooper Zeon CS8, 70 vs 65 on our comfort score.

Which lasts longer, Zeon CS8 or Ecsta PS31?

Kumho Ecsta PS31, 65 vs 58 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