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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

Kumho Ecsta XT KU37 vs Nexen N'Fera AU7 — 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 11 + 15 owner reviews. How we score

N'Fera AU7 is ahead, 69–55

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Kumho Ecsta XT KU37
Tire AKumho

Ecsta XT KU37

Summer

± 8Provisional

Tests – · none yet Owners 49 · 11 reviews

Nexen N'Fera AU7
Tire BNexen

N'Fera AU7

All-Season Premium Touring tires

± 9Provisional

Tests – · 1 test Owners 67 · 15 reviews

Category by category

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

  1. 55

    Dry

    N'Fera AU7 +14
    69
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score)≈ 60 (est.)≈ 68 (est.)
    Reviews found online4869

    Ecsta XT KU37: 60% × 59.5 (est.) + 40% × 47.5 = 55

    N'Fera AU7: 60% × 68.4 (est.) + 40% × 69.1 = 69

    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 0.41).

    No road tests of dry for N'Fera AU7. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 56

    Wet

    N'Fera AU7 +16
    72
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score)≈ 60 (est.)≈ 71 (est.)
    Reviews found online5172

    Ecsta XT KU37: 60% × 59.9 (est.) + 40% × 50.9 = 56

    N'Fera AU7: 60% × 71.4 (est.) + 40% × 71.9 = 72

    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 0.55).

    No road tests of wet for N'Fera AU7. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    65
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score)–≈ 67 (est.)
    Reviews found online–61

    N'Fera AU7: 60% × 67.4 (est.) + 40% × 60.7 = 65

    No road tests of snow for N'Fera AU7. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 55

    Comfort

    N'Fera AU7 +12
    67
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score)≈ 65 (est.)≈ 68 (est.)
    Reviews found online4966

    Ecsta XT KU37: 40% × 64.7 (est.) + 60% × 48.8 = 55

    N'Fera AU7: 40% × 68.1 (est.) + 60% × 66.1 = 67

    No road tests of comfort for Ecsta XT KU37. 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 N'Fera AU7. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. –

    Noise

    No comparison
    66
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score)–≈ 66 (est.)
    Reviews found online–65

    N'Fera AU7: 60% × 66.4 (est.) + 40% × 64.7 = 66

    No road tests of noise for N'Fera AU7. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 55

    Treadwear

    N'Fera AU7 +8
    63
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Professional tests (TWG score) · – / 1 tests≈ 60 (est.)63
    Reviews found online4862

    Ecsta XT KU37: 60% × 59.8 (est.) + 40% × 48 = 55

    N'Fera AU7: 60% × 62.9 + 40% × 62.3 = 63

    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 0.36).

  7. 47

    Handling (owners)

    N'Fera AU7 +21
    68
    Why this score
    SourceEcsta XT KU37N'Fera AU7
    Reviews found online4768
Scores at a glance
CategoryKumho Ecsta XT KU37Nexen N'Fera AU7
Relative Score 55 69
Dry 55 69
Wet 56 72
Snow – 65
Comfort 55 67
Noise – 66
Treadwear 55 63
Handling (owners) 47 68

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

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
Recomputed
Headline score
± 8

Ecsta XT KU37

± 9

N'Fera AU7

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 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
All owner themes in the Ecsta XT KU37 review

Tire B N'Fera AU7

Pros

  • Exceptional value for the price point
  • Quiet and comfortable ride quality
  • Strong wet, dry, and light snow traction

Cons

  • Potential for premature wear or cupping reported by some users
  • Prone to wandering or tracking poorly on metal bridge gratings
  • Softer compounds may be susceptible to quicker aging in harsh climates
All owner themes in the N'Fera AU7 review

Specs side by side

Attribute A · Kumho Ecsta XT KU37 B · Nexen N'Fera AU7
CategorySummerAll-Season Premium Touring tires
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—49
Rim diameters—16″ – 20″
Tread depth—9/32″
UTQG—500 A A
Treadwear warranty—50,000 mi
Sidewall—Blackwall
Max pressure—50 psi

Which one should you actually buy?

Kumho Ecsta XT KU37

Nexen N'Fera AU7

Winner: Nexen N'Fera AU7 — better handling, wet and dry. It leads or ties in every category we score. Kumho Ecsta XT KU37 rests on little evidence so far (0 tests, 11 reviews), so read this result as provisional. Nexen N'Fera AU7 rests on little evidence so far (1 test, 15 reviews), so read this result as provisional.

Pick tire B You enjoy sharp, responsive handling

Nexen N'Fera AU7 scores 68 vs 47 on handling.

Pick tire B Your priority is wet-weather safety

Nexen N'Fera AU7 scores 72 vs 56 on wet.

Pick tire B You want the most grip on dry roads

Nexen N'Fera AU7 scores 69 vs 55 on dry.

Pick tire B You want the most comfortable ride

Nexen N'Fera AU7 scores 67 vs 55 on comfort.

Tire A · Kumho Ecsta XT KU37
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Tire B · Nexen N'Fera AU7
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Ecsta XT KU37 or N'Fera AU7?

Which is better in the wet, Ecsta XT KU37 or N'Fera AU7?

Nexen N'Fera AU7, 72 vs 56 on our wet score.

Which grips better on dry roads, Ecsta XT KU37 or N'Fera AU7?

Nexen N'Fera AU7, 69 vs 55 on our dry score.

Which is more comfortable, Ecsta XT KU37 or N'Fera AU7?

Nexen N'Fera AU7, 67 vs 55 on our comfort score.

Which lasts longer, Ecsta XT KU37 or N'Fera AU7?

Nexen N'Fera AU7, 63 vs 55 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