Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 6 + 1 road tests and 485 + 50 owner reviews. How we score
Proxes T1 Sport is ahead, 70–61
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Tests 77 · 6 tests Owners 42 · 485 reviews
Best test result: #1 of 11 in 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 (exterior noise)
“Putting some Kumho Ecsta PS91s on. Curious how they’ll do since my go to Falken rt660 doesn’t come in the oem 18” sizes”
Tests 68 · 1 test Owners 71 · 50 reviews
Best test result: #3 of 10 in 2020 Auto Bild UHP 19 inch Tyre Test (straight aquaplaning)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) · 6 / 1 tests | 77 | 63 |
| Reviews found online | 52 | 79 |
Ecsta PS91: 60% × 76.7 + 40% × 51.6 = 67
Proxes T1 Sport: 60% × 62.8 + 40% × 78.7 = 69
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) · 6 / 1 tests | 79 | 71 |
| Reviews found online | 52 | 75 |
Ecsta PS91: 60% × 79 + 40% × 51.9 = 68
Proxes T1 Sport: 60% × 71.4 + 40% × 75.3 = 73
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | ≈ 50 (est.) | – |
| Reviews found online | 16 | – |
Ecsta PS91: 60% × 50.2 (est.) + 40% × 15.7 = 36
No road tests of snow for Ecsta PS91. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | ≈ 65 (est.) | ≈ 69 (est.) |
| Reviews found online | 49 | 70 |
Ecsta PS91: 40% × 65.3 (est.) + 60% × 48.5 = 55
Proxes T1 Sport: 40% × 69.3 (est.) + 60% × 69.8 = 70
No road tests of comfort for Ecsta PS91 or Proxes T1 Sport. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) · 3 / 1 tests | 70 | 71 |
| Reviews found online | 50 | ≈ 67 (est.) |
Ecsta PS91: 60% × 70.2 + 40% × 50.2 = 62
Proxes T1 Sport: 60% × 70.5 + 40% × 66.6 (est.) = 69
No owner ratings of noise for Proxes T1 Sport. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) | ≈ 54 (est.) | ≈ 63 (est.) |
| Reviews found online | 30 | 58 |
Ecsta PS91: 60% × 53.5 (est.) + 40% × 29.9 = 44
Proxes T1 Sport: 60% × 63.1 (est.) + 40% × 57.5 = 61
No road tests of treadwear for Ecsta PS91. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
No road tests of treadwear for Proxes T1 Sport. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Reviews found online | 54 | 77 |
| Source | Ecsta PS91 | Proxes T1 Sport |
|---|---|---|
| Professional tests (TWG score) · 3 / 1 tests | 48 | 71 |
| Category | Kumho Ecsta PS91 | Toyo Proxes T1 Sport |
|---|---|---|
| Relative Score | 61 | 70 |
| Dry | 67 | 69 |
| Wet | 68 | 73 |
| Snow | 36 | – |
| Comfort | 55 | 70 |
| Noise | 62 | 69 |
| Treadwear | 44 | 61 |
| Handling (owners) | 54 | 77 |
| Efficiency | 48 | 71 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Ecsta PS91
Proxes T1 Sport
Only categories both tires have data for count toward the headline score.
Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.
| Discipline | Category | Ecsta PS91 | Proxes T1 Sport | Δ | Head-to-head |
|---|---|---|---|---|---|
| Dry Braking | Dry | 80% #5/10 · 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 | 91% #9/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Dry Handling | Dry | 98% #7/10 · 2023 AZ UHP Summer Tyre Test | 96% #9/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Straight Aquaplaning | Wet | 80% #7/10 · 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 | 94% #3/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Wet Braking | Wet | 70% #9/10 · 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 | 89% #7/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Wet Handling | Wet | 97% #5/10 · 2023 AZ UHP Summer Tyre Test | 96% #8/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Noise | Noise | 94% #8/10 · 2023 AZ UHP Summer Tyre Test | 99% #6/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Rolling Resistance | Efficiency | 70% #5/10 · 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 | 94% #2/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Also published by the testers (not in the score) | |||||
| Price | Cost | 100% #1/10 · 2023 AZ UHP Summer Tyre Test | 71% #3/10 · 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
| Overall Ranking | Overall | #9/10 2023 AUTO Straßenverkehr 2023 Summer Tire Test R18 | #9/10 2020 Auto Bild UHP 19 inch Tyre Test | – | Different tests |
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
The Kumho Ecsta PS91 is widely praised as an affordable, budget-friendly summer tire with attractive styling and respectable wet or daily street performance compared to pricier rivals like Michelin. However, several users express frustration with poor tread life, rapid wear, and insufficient grip or heat endurance under hard driving and track conditions. Others also note issues with sketchy handling, flat-spotting, or vibration when cold.
“They are actually good tires. I used to have them, they have decent wet/dry traction which is good right now since its raining.”
“They were good enough for 1:46.708 at Mazda Laguna Seca 285/35ZR-19 Actually, thats better than I thought”
“Follow up on new wheels/tires for ZHP Well new wheels and tires are on aswell as aligned. I love the tire and fitment setup but really do not like the gunmetal grey color especially on imola. I will feel it out for a while but probably eventually powder coat to OEM silver. Wheels specs are 18 x 8.5 x ET50 with 255/35/18 Kuhmo Ecsta PS91 all around. -2.5 camber in the front and -2.8 in the rear.”
Based on 45 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Kumho Ecsta PS91 | B · Toyo Proxes T1 Sport |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 1 | 3 |
| Rim diameters | 19″ | 16″ – 19″ |
| Tread depth | 9.5/32″ | — |
| UTQG | 260 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 50 psi | — |
Kumho Ecsta PS91
Toyo Proxes T1 Sport
Winner: Toyo Proxes T1 Sport — better handling, efficiency and treadwear. It leads or ties in every category we score.
Toyo Proxes T1 Sport scores 77 vs 54 on handling.
Toyo Proxes T1 Sport scores 71 vs 48 on efficiency.
Toyo Proxes T1 Sport scores 61 vs 44 on treadwear.
Toyo Proxes T1 Sport scores 70 vs 55 on comfort.
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Toyo Proxes T1 Sport, 73 vs 68 on our wet score.
Neither, by our numbers: 67 vs 69 on the dry score, within 3 points.
Toyo Proxes T1 Sport, 69 vs 62 on our noise score.
Toyo Proxes T1 Sport, 70 vs 55 on our comfort score.
Toyo Proxes T1 Sport, 61 vs 44 on our treadwear score.
Toyo Proxes T1 Sport, 71 vs 48 on our efficiency score.
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
