Tests – · none yet Owners 30 · 4 reviews
Yokohama BluEarth S34 vs Michelin Primacy 4+ — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Primacy 4+ is ahead, 77–42
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Tests 83 · 10 tests Owners 72 · 39 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
44
Dry
Primacy 4+ +3478Why this score
Source BluEarth S34 Primacy 4+ Professional tests (TWG score) – 82 Reviews found online 31 72 -
40
Wet
Primacy 4+ +3979Why this score
Source BluEarth S34 Primacy 4+ Professional tests (TWG score) – 82 Reviews found online 29 76 -
47
Snow
No comparison–Why this score
Source BluEarth S34 Primacy 4+ Reviews found online 31 – -
45
Comfort
Primacy 4+ +2873Why this score
Source BluEarth S34 Primacy 4+ Professional tests (TWG score) – 73 Reviews found online 20 72 -
51
Noise
Primacy 4+ +2172Why this score
Source BluEarth S34 Primacy 4+ Professional tests (TWG score) – 75 Reviews found online 27 – -
48
Treadwear
Primacy 4+ +3482Why this score
Source BluEarth S34 Primacy 4+ Professional tests (TWG score) – 90 Reviews found online 35 70 -
25
Handling
Primacy 4+ +4368Why this score
Source BluEarth S34 Primacy 4+ Reviews found online 25 68
Scores at a glance
| Category | Yokohama BluEarth S34 | Michelin Primacy 4+ |
|---|---|---|
| Relative Score | 42 | 77 |
| Dry | 44 | 78 |
| Wet | 40 | 79 |
| Snow | 47 | – |
| Comfort | 45 | 73 |
| Noise | 51 | 72 |
| Treadwear | 48 | 82 |
| Handling | 25 | 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 and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Neither tire has a score here yet, so this weight changes nothing.
BluEarth S34
Primacy 4+
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 BluEarth S34
Pros
- Acceptable dry traction for standard commuting
- Low rolling resistance design
Cons
- Poor wet weather performance and traction
- High levels of road noise
- Mediocre handling characteristics
Tire B Primacy 4+
Pros
- Excellent ride comfort and a smooth, compliant 'limousine-like' feel over bumps
- Strong and reliable grip in both wet and dry conditions, inspiring confidence
- Noticeable improvement in quietness and traction compared to predecessor tires or factory options
Cons
- Loud road noise and a harsh drone on rough or coarse asphalt surfaces
- Soft sidewalls can reduce steering agility and initial responsiveness compared to dedicated sport tires
- High premium price point relative to competitors
Specs side by side
| Attribute | A · Yokohama BluEarth S34 | B · Michelin Primacy 4+ |
|---|---|---|
| Category | All Season Premium Touring tires | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | — | 66 |
| Rim diameters | — | 16″ – 21″ |
Which one should you actually buy?
Yokohama BluEarth S34
Michelin Primacy 4+
Winner: Michelin Primacy 4+ — better handling, wet and dry. It leads or ties in every category we score.
Michelin Primacy 4+ scores 68 vs 25 on handling.
Michelin Primacy 4+ scores 79 vs 40 on wet.
Michelin Primacy 4+ scores 78 vs 44 on dry.
Michelin Primacy 4+ scores 82 vs 48 on treadwear.
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.