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Head-to-head Updated

Dunlop SP Sport LM704 vs Michelin Primacy 4+ — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Primacy 4+ is ahead, 77–64

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Tire ADunlop

SP Sport LM704

Summer

Tests – · none yet Owners 63 · 27 reviews

Best test result: #9 of 9 in 2015 Auto Review Summer Tyre Test (overall ranking)

Tire BMichelin

Primacy 4+

Summer

Tests 83 · 10 tests Owners 72 · 39 reviews

Best test result: #3 of 11 in 2023 UTAC Summer Tire Test R17 (overall ranking)

Category by category

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

  1. 65

    Dry

    Primacy 4+ +13
    78
    Why this score
    SourceSP Sport LM704Primacy 4+
    Professional tests (TWG score)–82
    Reviews found online6372
  2. 61

    Wet

    Primacy 4+ +18
    79
    Why this score
    SourceSP Sport LM704Primacy 4+
    Professional tests (TWG score)–82
    Reviews found online5876
  3. 68

    Comfort

    Primacy 4+ +5
    73
    Why this score
    SourceSP Sport LM704Primacy 4+
    Professional tests (TWG score)–73
    Reviews found online6672
  4. –

    Noise

    No comparison
    72
    Why this score
    SourceSP Sport LM704Primacy 4+
    Professional tests (TWG score)–75
  5. 65

    Treadwear

    Primacy 4+ +17
    82
    Why this score
    SourceSP Sport LM704Primacy 4+
    Professional tests (TWG score)–90
    Reviews found online6570
  6. 65

    Handling

    Primacy 4+ +3
    68
    Why this score
    SourceSP Sport LM704Primacy 4+
    Reviews found online6568
Scores at a glance
CategoryDunlop SP Sport LM704Michelin Primacy 4+
Relative Score 64 77
Dry 65 78
Wet 61 79
Comfort 68 73
Noise – 72
Treadwear 65 82
Handling 65 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.

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Less important
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Neither tire has a score here yet, so this weight changes nothing.

Important
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Neutral
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Recomputed
Headline score

SP Sport LM704

Primacy 4+

Only categories both tires have data for count toward the headline score.

The professional test results behind the scores

Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.

DisciplineCategorySP Sport LM704Primacy 4+ΔBoth?
Overall Ranking Overall 11% #9/9 · 2015 Auto Review Summer Tyre Test 80% #3/11 · 2023 UTAC Summer Tire Test R17 −68.9 Different tests

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A SP Sport LM704

Pros

  • Exceptional tread life and long-term durability
  • Good dry grip and cornering stability
  • Comfortable ride quality that handles bumps well

Cons

  • Significantly compromised grip and high risk of aquaplaning in the wet
  • Numb steering feel or understeer at higher speeds for some users
  • Occasional reports of a firm or bumpy ride depending on vehicle and road surface
All owner themes in the SP Sport LM704 review

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
All owner themes in the Primacy 4+ review

Specs side by side

Attribute A · Dunlop SP Sport LM704 B · Michelin Primacy 4+
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—66
Rim diameters—16″ – 21″

Which one should you actually buy?

Dunlop SP Sport LM704

Michelin Primacy 4+

Winner: Michelin Primacy 4+ — better wet, treadwear and dry. It leads or ties in every category we score.

Pick tire B Your priority is wet-weather safety

Michelin Primacy 4+ scores 79 vs 61 on wet.

Pick tire B You want the longest tread life

Michelin Primacy 4+ scores 82 vs 65 on treadwear.

Pick tire B You want the most grip on dry roads

Michelin Primacy 4+ scores 78 vs 65 on dry.

Pick tire B You want the most comfortable ride

Michelin Primacy 4+ scores 73 vs 68 on comfort.

Tire A · Dunlop SP Sport LM704
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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.

77

Leads

Primacy 4+

Amazon