Segment
1. Michelin Primacy 3 Premium2. Cooper Zeon CS8 Upper-middle
| # | Cooper Zeon CS8
| Michelin Primacy 3
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|---|---|---|---|
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| Dimensions | R15 - R19 | R15 - R20 | |
| Price | |||
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The Cooper Zeon CS8 and the Michelin Primacy 3 are both summer tyres aimed at mainstream passenger cars, but test results place them at very different levels. Below we compare their measured performance across major magazine tests, summarise cumulative strengths and weaknesses, and give a concise verdict on which tyre performs better overall.
Quick facts: Cooper Zeon CS8 (summer, made in GB) — profile and full details at /cooper-zeon-cs8. Manufacturer page: Cooper. Michelin Primacy 3 — details at /michelin-primacy-3; manufacturer page: Michelin. Note: the Primacy 3 has been superseded by the Michelin Primacy 4 (see /michelin-primacy-4), which explains why the Primacy 3 shows no active percentage rating in our current database.
Test summary (key results):
What this means: Across the two major comparative test runs we have, the Michelin Primacy 3 consistently placed significantly higher than the Cooper Zeon CS8. A 1st place finish in ADAC is a strong indicator of balanced performance — notably superior braking, stability and wet/dry behaviour — while good AutoBild placement confirms the tyre's all-round strengths. By contrast, the Cooper's ADAC rank near the bottom suggests clear shortcomings in the specific components ADAC emphasizes (safety-related criteria such as wet braking and handling), though its mid-pack AutoBild placing shows it can compete on value or certain dry/comfort metrics.
Strengths & weaknesses:
Verdict: If test performance is the priority, the Michelin Primacy 3 clearly outperforms the Cooper Zeon CS8 across major independent tests and should be regarded as the superior tyre in this comparison. However, because the Primacy 3 has been replaced by the Primacy 4, buyers should look to the newer Primacy 4 or current Michelin summer ranges for the latest improvements and availability. The Cooper Zeon CS8 can offer a budget-oriented alternative, but it falls short of the safety and handling benchmarks set by the Michelin in independent tests.
1. Michelin Primacy 3 Premium2. Cooper Zeon CS8 Upper-middle
2. Cooper Zeon CS8 19.71
1. Michelin Primacy 3 Exemplary2. Cooper Zeon CS8 Satisfactory
1. Michelin Primacy 3 Recommended2. Cooper Zeon CS8 Sufficient
1. Cooper Zeon CS8 70 dB2. Michelin Primacy 3 71 dB
These tyres were tested together in 3 test(s). Click to view detailed head-to-head results.

| Name | Wet | Dry | Noise | Wear | Fuel consumption | ||
|---|---|---|---|---|---|---|---|
| Best values in test | 2,0 | 1,6 | 3,0 | 1,0 | 1,7 | ||
| Cooper Zeon CS8 Rating: Satisfactory | 3,2 | 3,2 | 3,2 | 2,5 | 2,3 | ||
| Michelin Primacy 3 Rating: Good | 2,5 | 1,7 | 3,1 | 1,0 | 1,9 | ||
| Show test details | |||||||

| Name | Wet | Dry | Running costs | ||||
|---|---|---|---|---|---|---|---|
| Best values in test | 1- | 1- | 1 | ||||
| Cooper Zeon CS8 Rating: Satisfactory | 2- | 2- | 2- | ||||
| Michelin Primacy 3 Rating: Satisfactory | 2- | 2+ | 1- | ||||
| Show test details | |||||||

| Name | Stopping distance on dry | Stopping distance on wet | |||||
|---|---|---|---|---|---|---|---|
| Best values in test | 34,1 | 34,6 | |||||
| Cooper Zeon CS8 | 37 | 39,2 | |||||
| Michelin Primacy 3 | 34,6 | 38,58 | |||||
| Show test details | |||||||