Tests – · none yet Owners 76 · 62 reviews
Head-to-head
Updated
Dunlop SP Sport FM800 vs Michelin Primacy 4+ — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Primacy 4+ leads, 78–74 Narrow edge
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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.
-
74
Dry
Primacy 4+ +579Why this score
Source SP Sport FM800 Primacy 4+ Professional tests (TWG score) – 82 Reviews found online 77 73 -
76
Wet
Primacy 4+ +177Why this score
Source SP Sport FM800 Primacy 4+ Professional tests (TWG score) – 79 Reviews found online 78 75 -
72
Comfort
Level72Why this score
Source SP Sport FM800 Primacy 4+ Professional tests (TWG score) – 72 Reviews found online 74 72 -
–
Noise
No comparison72Why this score
Source SP Sport FM800 Primacy 4+ Professional tests (TWG score) – 75 -
70
Treadwear
Primacy 4+ +1383Why this score
Source SP Sport FM800 Primacy 4+ Professional tests (TWG score) – 91 Reviews found online 73 71 -
76
Handling
SP Sport FM800 +769Why this score
Source SP Sport FM800 Primacy 4+ Reviews found online 76 69
Scores at a glance
| Category | Dunlop SP Sport FM800 | Michelin Primacy 4+ |
|---|---|---|
| Relative Score | 74 | 78 |
| Dry | 74 | 79 |
| Wet | 76 | 77 |
| Comfort | 72 | 72 |
| Noise | – | 72 |
| Treadwear | 70 | 83 |
| Handling | 76 | 69 |
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.
Important
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Important
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Less important
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Less important
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Neither tire has a score here yet, so this weight changes nothing.
Important
NoneLessNeutralMoreMost
Neutral
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Recomputed
Headline score
74
/ 100
SP Sport FM800
78
/ 100
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 SP Sport FM800
Pros
- Exceptional wet and dry traction with strong anti-aquaplaning capabilities
- High value for money compared to premium brands like Michelin and Bridgestone
- Low road noise and very quiet, smooth ride quality
Cons
- Faster than average tread wear reported by some drivers
- Rubber compound can harden over time, leading to reduced performance as the tire ages
- Softer sidewalls can occasionally result in slightly less precise steering feel
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 · Dunlop SP Sport FM800 | B · Michelin Primacy 4+ |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
74
/ 100
Dunlop SP Sport FM800
78
/ 100
Michelin Primacy 4+
Winner: Michelin Primacy 4+ — better treadwear and dry. Pick the Dunlop SP Sport FM800 if handling matters most to you.
Pick tire B
You want the longest tread life
Michelin Primacy 4+ scores 83 vs 70 on treadwear.
Pick tire A
You enjoy sharp, responsive handling
Dunlop SP Sport FM800 scores 76 vs 69 on handling.
Pick tire B
You want the most grip on dry roads
Michelin Primacy 4+ scores 79 vs 74 on dry.
Tire A · Dunlop SP Sport FM800
Tire B · Michelin Primacy 4+
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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.