Michelin Primacy 5 vs Cooper Summer
The Michelin Primacy 5 and the Cooper Summer have met in one independent test so far, and the Primacy 5 finished ahead. The Primacy 5 was stronger in dry, wet, comfort and value.
Performance profile
10 measurements from the one shared test, each tire shown as its share of the better figure.
Where each is furthest ahead
Primacy 5
Summer
Point at or tap any spoke for both tires' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 118 ft stop against 112 ft is 95%; each spoke averages the shared tests that recorded it.
Where each scores higher
Primacy 5
Summer
Not ahead in any category
Point at or tap any spoke for both tires' figures.
Category scores are percentiles among tires of the same season and class: 90 means this tire out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Every measurement, side by side
Both tires' figures from the one test that ran them together, on the same car, in the same size, on the same day. The bar grows towards the tire that did better.
| Measurement | Primacy 5 | Gap | Summer |
|---|---|---|---|
| Dry Primacy 5 ahead | |||
| Dry Braking ft | 122 | 1.1% | 123 |
| Dry Handling mph | 66.2 | = | 66.2 |
| Wet Primacy 5 ahead | |||
| Wet Braking ft | 127 | 6.5% | 136 |
| Wet Handling mph | 34 | 1.1% | 33.6 |
| Wet Circle mph | 17 | 0.9% | 17.2 |
| Straight Aqua mph | 57.2 | 1.5% | 56.4 |
| Curved Aquaplaning ft/s² | 14.5 | 0.5% | 14.4 |
| Comfort Primacy 5 ahead | |||
| Noise dB | 69 | 2.9 dB | 71.9 |
| Value Primacy 5 ahead | |||
| Rolling Resistance kg / t | 7.2 | 6.5% | 7.7 |
| Energy Consumption kWh/100km | 10.4 | 1% | 10.5 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tires shared.
Head to head in 1 test in 2026
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Primacy 5 | Field | Summer |
|---|---|---|---|
| 2026 Summer ECO Tire Test | P3 of 8 | P7 of 8 |
Primacy 5 vs Summer: your questions
Is the Michelin Primacy 5 or the Cooper Summer the better tire?
The Michelin Primacy 5 and the Cooper Summer have met in one independent test so far, and the Primacy 5 finished ahead. On the Tire Reviews Score, which weighs every test and review we hold, the Primacy 5 scores 8.8 and the Summer 7 out of 10.
Which is better in the wet, the Primacy 5 or the Summer?
The Primacy 5 led 4 of the 5 wet measurements the shared tests recorded.
Which is better in the dry?
The Primacy 5 led 1 of the 2 dry measurements the shared tests recorded.
Which is quieter and more comfortable?
Owners rate comfort 8.4/10 for the Primacy 5 and 8/10 for the Summer.
What do owners say?
Owners rate the Primacy 5 82% from 62 reviews and the Summer 71% from 2.
Are they available in the same sizes?
The Primacy 5 is made in 88 sizes (16 to 22 inch) and the Summer in 115 (14 to 21 inch). 55 sizes are available in both. On the EU label the Primacy 5 is graded A for wet grip and B for rolling resistance in most sizes; the Summer A and C.
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Run either of these?
Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.