Tests – · none yet Owners 63 · 259 reviews
Nexen N FERA SUR4 looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Head-to-head
Updated
Kumho Ecsta PS31 vs Nexen N FERA SUR4 — 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 259 + 6 owner reviews. How we score
Ecsta PS31 leads, 66–62 Narrow edge
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Tests – · none yet Owners 57 · 6 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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65
Dry
N FERA SUR4 +671Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 66 (est.) ≈ 70 (est.) Reviews found online 63 73 Ecsta PS31: 60% × 65.9 (est.) + 40% × 63.1 = 65
N FERA SUR4: 60% × 69.9 (est.) + 40% × 73.2 = 71
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 0.40).
No road tests of dry for N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).
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68
Wet
Ecsta PS31 +1355Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 69 (est.) ≈ 59 (est.) Reviews found online 68 50 Ecsta PS31: 60% × 68.8 (est.) + 40% × 68 = 68
N FERA SUR4: 60% × 58.8 (est.) + 40% × 50.1 = 55
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 0.56).
No road tests of wet for N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).
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57
Snow
No comparison–Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 63 (est.) – Reviews found online 49 – Ecsta PS31: 60% × 62.9 (est.) + 40% × 48.8 = 57
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 0.33).
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67
Comfort
Ecsta PS31 +760Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 68 (est.) ≈ 66 (est.) Reviews found online 65 51 Ecsta PS31: 60% × 68.4 (est.) + 40% × 65 = 67
N FERA SUR4: 60% × 65.9 (est.) + 40% × 50.6 = 60
No road tests of comfort for Ecsta PS31 or N FERA SUR4. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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67
Noise
No comparison–Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 67 – Ecsta PS31: 60% × 67.3 (est.) + 40% × 67 = 67
No road tests of noise for Ecsta PS31. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
-
65
Treadwear
Ecsta PS31 +1055Why this score
Source Ecsta PS31 N FERA SUR4 Professional tests (TWG score) ≈ 65 (est.) ≈ 60 (est.) Reviews found online 65 47 Ecsta PS31: 60% × 65.3 (est.) + 40% × 64.7 = 65
N FERA SUR4: 60% × 59.8 (est.) + 40% × 46.7 = 55
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 0.31).
No road tests of treadwear for N FERA SUR4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).
-
67
Handling (owners)
N FERA SUR4 +471Why this score
Source Ecsta PS31 N FERA SUR4 Reviews found online 67 71
Scores at a glance
| Category | Kumho Ecsta PS31 | Nexen N FERA SUR4 |
|---|---|---|
| Relative Score | 66 | 62 |
| Dry | 65 | 71 |
| Wet | 68 | 55 |
| Snow | 57 | – |
| Comfort | 67 | 60 |
| Noise | 67 | – |
| Treadwear | 65 | 55 |
| Handling (owners) | 67 | 71 |
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
66
/ 100
Ecsta PS31
62
/ 100
N FERA SUR4
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 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
Tire B N FERA SUR4
Pros
- Exceptional dry grip and track-day performance
- Precise steering feedback and predictable handling
- Cost-effective alternative to more expensive track tires
Cons
- High level of road noise
- Poor wet-weather performance and dangerous hydroplaning tendencies in heavy rain
- Fast tread wear
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Nexen N FERA SUR4 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger 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?
66
/ 100
Kumho Ecsta PS31
62
/ 100
Nexen N FERA SUR4
Narrow edge: Kumho Ecsta PS31 — better wet, treadwear and comfort. Pick the Nexen N FERA SUR4 if dry matters most to you. Nexen N FERA SUR4 rests on little evidence so far (0 tests, 6 reviews), so read this result as provisional.
Pick tire A
Your priority is wet-weather safety
Kumho Ecsta PS31 scores 68 vs 55 on wet.
Pick tire A
You want the longest tread life
Kumho Ecsta PS31 scores 65 vs 55 on treadwear.
Pick tire A
You want the most comfortable ride
Kumho Ecsta PS31 scores 67 vs 60 on comfort.
Pick tire B
You want the most grip on dry roads
Nexen N FERA SUR4 scores 71 vs 65 on dry.
Tire A · Kumho Ecsta PS31
Tire B · Nexen N FERA SUR4
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Ecsta PS31 or N FERA SUR4?
Which is better in the wet, Ecsta PS31 or N FERA SUR4?
Kumho Ecsta PS31, 68 vs 55 on our wet score.
Which grips better on dry roads, Ecsta PS31 or N FERA SUR4?
Nexen N FERA SUR4, 71 vs 65 on our dry score.
Which is more comfortable, Ecsta PS31 or N FERA SUR4?
Kumho Ecsta PS31, 67 vs 60 on our comfort score.
Which lasts longer, Ecsta PS31 or N FERA SUR4?
Kumho Ecsta PS31, 65 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