Tests 83 · 10 tests Owners 72 · 39 reviews
Michelin Primacy 4+ vs Yokohama BluEarth S34 — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Primacy 4+ is ahead, 77–42
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Tests – · none yet Owners 30 · 4 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
78
Dry
Primacy 4+ +3444Why this score
Source Primacy 4+ BluEarth S34 Professional tests (TWG score) 82 – Reviews found online 72 31 -
79
Wet
Primacy 4+ +3940Why this score
Source Primacy 4+ BluEarth S34 Professional tests (TWG score) 82 – Reviews found online 76 29 -
–
Snow
No comparison47Why this score
Source Primacy 4+ BluEarth S34 Reviews found online – 31 -
73
Comfort
Primacy 4+ +2845Why this score
Source Primacy 4+ BluEarth S34 Professional tests (TWG score) 73 – Reviews found online 72 20 -
72
Noise
Primacy 4+ +2151Why this score
Source Primacy 4+ BluEarth S34 Professional tests (TWG score) 75 – Reviews found online – 27 -
82
Treadwear
Primacy 4+ +3448Why this score
Source Primacy 4+ BluEarth S34 Professional tests (TWG score) 90 – Reviews found online 70 35 -
68
Handling
Primacy 4+ +4325Why this score
Source Primacy 4+ BluEarth S34 Reviews found online 68 25
Scores at a glance
| Category | Michelin Primacy 4+ | Yokohama BluEarth S34 |
|---|---|---|
| Relative Score | 77 | 42 |
| Dry | 78 | 44 |
| Wet | 79 | 40 |
| Snow | – | 47 |
| Comfort | 73 | 45 |
| Noise | 72 | 51 |
| Treadwear | 82 | 48 |
| Handling | 68 | 25 |
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.
Primacy 4+
BluEarth S34
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 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
Tire B 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
Specs side by side
| Attribute | A · Michelin Primacy 4+ | B · Yokohama BluEarth S34 |
|---|---|---|
| Category | Summer | All Season Premium Touring tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 66 | — |
| Rim diameters | 16″ – 21″ | — |
Which one should you actually buy?
Michelin Primacy 4+
Yokohama BluEarth S34
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.