Tests – · none yet Owners 53 · 1 review
Head-to-head
Updated
Bridgestone Ecopia EP600 vs Michelin Primacy 4 — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
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Tests 83 · 23 tests Owners 75 · 13,325 reviews
“Review: Michelin Primacy 4 ST I own a 2023 N8 DCT and recently changed all four tyres from the stock CEATs after one of the tyres’ sidewall was punctured on hitting a rather deep pothole at high speed. Cost: INR 9,750 per tyre Existing tyre buyback: INR 1,000 per tyre (~15k kms) Review: I’ve been using the new tyres for a few weeks now and I’m happy with the upgrade. The difference is noticeable, but only if you pay attention. I’d say a non-savvy person won’t notice anything different unless you ask them to pay attention. At low speeds, the road noise is reduced and the vehicle is noticeably silent (almost dead silent if the roads are smooth and the engine is at low revs) and smoother. At high speeds, the noise level difference is not very noticeable due to the engine and wind noise, but the smoothness and grip is noticeably better. That said, I wouldn’t say the stock tyres are bad (in terms of both - noise and grip) as a lot of reviewers like to point out; definitely not a night and day difference for me. Lastly, I believe the fuel efficiency has improved due to the lower rolling resistance, but I don’t have enough data to claim this confidently. My verdict is to only upgrade if your current tyres are worn out. Personally, I don’t think spending close to 40k is worth it for the budget conscious. But if you have the money to spare, you will definitely be happy with the upgrade. Read more”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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Dry
No comparison80Why this score
Source Ecopia EP600 Primacy 4 Professional tests (TWG score) – 84 Reviews found online – 75 -
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Wet
No comparison82Why this score
Source Ecopia EP600 Primacy 4 Professional tests (TWG score) – 85 Reviews found online – 78 -
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Comfort
No comparison80Why this score
Source Ecopia EP600 Primacy 4 Professional tests (TWG score) – 84 Reviews found online – 74 -
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Noise
No comparison71Why this score
Source Ecopia EP600 Primacy 4 Professional tests (TWG score) – 73 -
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Treadwear
No comparison79Why this score
Source Ecopia EP600 Primacy 4 Professional tests (TWG score) – 84 Reviews found online – 71 -
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Handling
No comparison75Why this score
Source Ecopia EP600 Primacy 4 Reviews found online – 75
Scores at a glance
| Category | Bridgestone Ecopia EP600 | Michelin Primacy 4 |
|---|---|---|
| Relative Score | – | 79 |
| Dry | – | 80 |
| Wet | – | 82 |
| Comfort | – | 80 |
| Noise | – | 71 |
| Treadwear | – | 79 |
| Handling | – | 75 |
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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Recomputed
Headline score
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/ 100
Ecopia EP600
79
/ 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 Ecopia EP600
Not enough owner reviews yet to extract themes.
Tire B Primacy 4
Pros
- Exceptional tread life and long-lasting durability
- Low road noise and a very quiet, comfortable ride
- Reliable and consistent wet and dry grip
Cons
- Vague, numb, or floaty steering feel with soft sidewalls under hard cornering
- High price point compared to competitors
- Occasional reports of increased road noise or harsher ride as the tread wears down
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Bridgestone Ecopia EP600
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Michelin Primacy 4
Community opinion on the Michelin Primacy 4 is largely positive, praising its exceptional wet braking capabilities, impressive longevity, low cabin noise, and smooth ride quality. While some users note limitations in heavy snow or rougher tarmac surfaces, it is widely recommended as a top-tier touring tire for daily driving compared to sportier alternatives like the Pilot Sport series.
r/AutomobileRO
·2 upvotes ·2025-09-22
“Am avut primacy 4 pe o electrica. Destul de dezamagit de faptul ca dupa ~ 28.000 km s-au tocit rau de au ajuns cam la 3 mm. Placute la condus, silentioase, dar nu cele mai aderente. Pilot sport 4 pe aceiasi electrica cu primacy 4. Huruie de te doare capul. Aderenta nu o simt neaparat wow fata de primacy 4. Nu le mai suport si abia astept sa le trec pe iarna, oricum asta fiind ultima incaltare cu ele. Pe o termica am primacy 5, si sunt cele mai ok din experienta mea. Cele mai silentioase si aderente din cele 3. Dupa 20.000 km uzura a scazut cam cu 1 mm. Recomandarea mea e sa alegi primacy 5 fara ezitare.”
r/nzev
·1 upvote ·2026-02-11
“Both our Polestar2 (new) and 2016 Leaf (Jap import) arrived with Primacy 4s on them. The FWD Polestar needed fronts replaced at ~35k km and being 245/45 R19s Primacy were too pricey so went with Kumho Ecsta PS71 equivalents for a lot cheaper and negligible difference in performance. The rears on the Polestar are still going strong at 45k km and look like at least 60k km will be likely. We also fitted Kumhos on our previous Leaf and were very satisfied with performance and life.”
r/nzev
·1 upvote ·2026-02-11
“When I bought my freshly imported 2014 Nissan Leaf in Sept 2020 it had 27,xxx km on the odometer and a full set of Michelin Primacy 4 that were sidewall dated from very late 2018, so likely only very low mileage on them. I put another 47,000km on them before replacing with a full set of Toyo Proxes C100 Plus in April 2024 which have also been great. The Michelin fronts were certainly very worn particularly the shoulders. I really rate Toyos so would encourage you to have a look. I’ve since put 21,000km on the Toyos and even after 12,500km, in May 2025 at their most recent WOF, the fronts still measured at 7mm and rears 8mm. P.S I paid $900 total for the 4 x Toyos inc. fitting, disposal etc.”
Top themes
#Wet braking and grip#Ride comfort and low noise#Tread wear and longevity#Comparison with Pilot Sport#Performance on EVs and hybrids
Based on 31 community posts
Specs side by side
| Attribute | A · Bridgestone Ecopia EP600 | B · Michelin Primacy 4 |
|---|---|---|
| Category | — | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
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/ 100
Bridgestone Ecopia EP600
79
/ 100
Michelin Primacy 4
Only Michelin Primacy 4 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Tire A · Bridgestone Ecopia EP600
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.