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Cooper CS4 Touring looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Cooper CS4 Touring vs Kumho Solus HA31 — 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 + 2 road tests and 35 + 18 owner reviews. How we score

Solus HA31 is ahead, 74–67

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Cooper CS4 Touring
Tire ACooper

CS4 Touring

All Season

± 7

Tests – · none yet Owners 65 · 35 reviews

Kumho Solus HA31
Tire BKumho

Solus HA31

All Season

± 7

Tests 70 · 2 tests Owners 78 · 18 reviews

Best test result: #3 of 10 in 2019 Auto Bild All Season Tyre Test (noise)

Category by category

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

  1. 67

    Dry

    Solus HA31 +2
    69
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 2 tests≈ 68 (est.)64
    Reviews found online6778

    CS4 Touring: 60% × 67.6 (est.) + 40% × 66.8 = 67

    Solus HA31: 60% × 63.7 + 40% × 78 = 69

    No road tests of dry for CS4 Touring. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 70

    Wet

    Solus HA31 +9
    79
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 2 tests≈ 70 (est.)76
    Reviews found online7084

    CS4 Touring: 60% × 70.1 (est.) + 40% × 69.6 = 70

    Solus HA31: 60% × 75.9 + 40% × 83.6 = 79

    No road tests of wet for CS4 Touring. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 64

    Snow

    Solus HA31 +8
    72
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 1 tests≈ 67 (est.)66
    Reviews found online6080

    CS4 Touring: 60% × 66.6 (est.) + 40% × 59.5 = 64

    Solus HA31: 60% × 65.8 + 40% × 80.4 = 72

    No road tests of snow for CS4 Touring. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 67

    Comfort

    Solus HA31 +7
    74
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score)≈ 69 (est.)≈ 70 (est.)
    Reviews found online6676

    CS4 Touring: 40% × 68.6 (est.) + 60% × 66.1 = 67

    Solus HA31: 40% × 70.3 (est.) + 60% × 75.7 = 74

    No road tests of comfort for CS4 Touring or Solus HA31. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 67

    Noise

    Solus HA31 +6
    73
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 1 tests≈ 67 (est.)73
    Reviews found online6873

    CS4 Touring: 60% × 66.6 (est.) + 40% × 68.3 = 67

    Solus HA31: 60% × 72.5 + 40% × 73 = 73

    No road tests of noise for CS4 Touring. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 63

    Treadwear

    Solus HA31 +9
    72
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 1 tests≈ 65 (est.)72
    Reviews found online6272

    CS4 Touring: 60% × 64.6 (est.) + 40% × 61.8 = 63

    Solus HA31: 60% × 71.7 + 40% × 71.7 = 72

    No road tests of treadwear for CS4 Touring. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 68

    Handling (owners)

    Solus HA31 +10
    78
    Why this score
    SourceCS4 TouringSolus HA31
    Reviews found online6878
  8. –

    Efficiency

    No comparison
    63
    Why this score
    SourceCS4 TouringSolus HA31
    Professional tests (TWG score) · – / 1 tests–63
Scores at a glance
CategoryCooper CS4 TouringKumho Solus HA31
Relative Score 67 74
Dry 67 69
Wet 70 79
Snow 64 72
Comfort 67 74
Noise 67 73
Treadwear 63 72
Handling (owners) 68 78
Efficiency – 63

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
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
± 7

CS4 Touring

± 7

Solus HA31

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 CS4 Touring

Pros

  • Excellent wet and winter weather traction, including reliable performance in heavy rain and snow without hydroplaning
  • Low road noise and high ride comfort
  • Good overall value for the money with competitive longevity

Cons

  • Grip decreases noticeably as the tire wears down toward the end of its life
  • Faster tread wear reported under heavy-load or towing conditions
  • Discontinued by the manufacturer, making replacement matching difficult
All owner themes in the CS4 Touring review

Tire B Solus HA31

Pros

  • Excellent snow and winter weather traction
  • Strong grip and stability on wet and dry roads
  • High value and competitive pricing compared to premium brands

Cons

  • Higher than average road noise, particularly at highway speeds
  • Tires can feel slightly soft in warmer weather conditions
  • Mixed feedback regarding dry performance compared to dedicated summer options
All owner themes in the Solus HA31 review

Specs side by side

Attribute A · Cooper CS4 Touring B · Kumho Solus HA31
CategoryAll SeasonAll Season
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available129
Rim diameters17″13″ – 18″
Tread depth11/32″10/32″
UTQG520 A A420 A A
Treadwear warranty60,000 mi—
SidewallBlackwallBlackwall
Max pressure44 psi50 psi

Which one should you actually buy?

Cooper CS4 Touring

Kumho Solus HA31

Winner: Kumho Solus HA31 — better handling, wet and treadwear. It leads or ties in every category we score.

Pick tire B You enjoy sharp, responsive handling

Kumho Solus HA31 scores 78 vs 68 on handling.

Pick tire B Your priority is wet-weather safety

Kumho Solus HA31 scores 79 vs 70 on wet.

Pick tire B You want the longest tread life

Kumho Solus HA31 scores 72 vs 63 on treadwear.

Pick tire B You drive through snowy winters

Kumho Solus HA31 scores 72 vs 64 on snow.

Tire A · Cooper CS4 Touring
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Tire B · Kumho Solus HA31
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CS4 Touring or Solus HA31?

Which is better in the wet, CS4 Touring or Solus HA31?

Kumho Solus HA31, 79 vs 70 on our wet score.

Which grips better on dry roads, CS4 Touring or Solus HA31?

Neither, by our numbers: 67 vs 69 on the dry score, within 3 points.

Which is better in snow, CS4 Touring or Solus HA31?

Kumho Solus HA31, 72 vs 64 on our snow score.

Which is quieter, CS4 Touring or Solus HA31?

Kumho Solus HA31, 73 vs 67 on our noise score.

Which is more comfortable, CS4 Touring or Solus HA31?

Kumho Solus HA31, 74 vs 67 on our comfort score.

Which lasts longer, CS4 Touring or Solus HA31?

Kumho Solus HA31, 72 vs 63 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