Bridgestone Potenza Sport AS vs Michelin Pilot Sport All Season 4
- TR Score
- 6.6/10
- Owners say
- 79% · 4
- TR Score
- 9.4/10
- Owners say
- 79% · 36
In the 2 independent tests that ran both tires, the Michelin Pilot Sport All Season 4 finished ahead 2 times and the Potenza Sport AS not once. The Pilot Sport All Season 4 stopped 10.1% shorter in the wet.
Data updated
Which should you buy?
Choose the Michelin Pilot Sport All Season 4 if your priority is maximum all-season performance-especially wet braking and wet handling-because it delivers consistently shorter stopping distances and faster lap times in both shared tests. Choose the Bridgestone Potenza Sport AS if you value a quieter cabin and prefer a more forgiving, lower-limit driving style, and if ice braking/snow-handling confidence matters more to you than extracting the last word in wet and dry traction.
Where the Potenza Sport AS is stronger
- Lower perceived noise in both shared tests (won subjective noise in 2024 and 2026)
- Stronger winter niche results: better snow handling (54.18 s vs 55.25 s) and better ice braking (13.17 m vs 14.23 m)
- Competitive subjective road manners in 2026 (7.75 vs 7.5 road score), with predictable, easy-to-rotate behavior at lower limits on track
Where the Pilot Sport All Season 4 is stronger
- Consistent leader in objective dry braking across both tests (~5-6% shorter than Bridgestone)
- Clear wet-performance advantage: ~10% shorter wet braking and quicker wet handling laps in both tests
- Higher measured dry grip (0.90g vs 0.87g in 2026) and quicker dry handling times in both sizes
The bullet points are analysis of the shared tests and of owner reviews; the measured wins in each discipline are in the tables below. Where the two disagree, the figures are right.
Potenza Sport AS vs Pilot Sport All Season 4 at a glance
| Category | Potenza Sport AS | Gap | Pilot Sport All Season 4 |
|---|---|---|---|
| Shared tests won2 shared tests | 0 | 2 | |
| Dry7 measurements | 1 | The Pilot Sport All Season 4 stopped 5.6% shorter in the dry (2 tests) | 6 |
| Wet5 measurements | 0 | The Pilot Sport All Season 4 stopped 10.1% shorter in the wet (2 tests) | 5 |
| Snow2 measurements | 1 | Level between the two. | 1 |
| Ice1 measurement | 1 | 0 | |
| Comfort4 measurements | 3 | 1 | |
| Tire Reviews Scoreevery test and review we hold | 6.6/10 | The Pilot Sport All Season 4 by 2.8 | 9.4/10 |
| Owner rating4 and 36 reviews | 79% | Too close to call | 79% |
Wins count every measurement the shared tests recorded for both tires; a tick marks the tire ahead on that line. Subjective driver scores count as wins but are never averaged, because each test uses its own scale.
Head to head in 2 tests, 0 to 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 | Potenza Sport AS | Field | Pilot Sport All Season 4 |
|---|---|---|---|
| Tire Rack Ultra High Performance All-Season Tire Test | P4 of 4 | P3 of 4 | |
| 2024 Tire Rack UHP All Season Tire Test | P8 of 9 | P4 of 9 |
Performance profile
6 measurements from the 2 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Potenza Sport AS
Pilot Sport All Season 4
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. 7 measurements recorded in only one shared test are left off; every measurement is in the table further down.
Where each scores higher
Potenza Sport AS
Pilot Sport All Season 4
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.
Where owners rate each higher
Potenza Sport AS
Pilot Sport All Season 4
Point at or tap any spoke for both tires' figures.
Owners rate the Potenza Sport AS 79% from 4 reviews and the Pilot Sport All Season 4 79% from 36. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Averages of the figures both tires posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Open a discipline for its measurements, and a measurement for every test's figure.
| Measurement | Potenza Sport AS | Gap | Pilot Sport All Season 4 | Wins | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 118 | 5.6% | 111 | 0-2 | |||||||||
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| 30.66 | 1.4% | 30.23 | 0-2 | |||||||||
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| scored | 7.7% | scored | 0-1 | |||||||||
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| 0.87 | 3.4% | 0.9 | 0-1 | |||||||||
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| scored | 3.3% | scored | 1-0 | |||||||||
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| 146 | 10.1% | 131 | 0-2 | |||||||||
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| 33.24 | 3.7% | 32.01 | 0-2 | |||||||||
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| scored | 11.1% | scored | 0-1 | |||||||||
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| 83 | 0.7% | 83 | 0-1 | |||||||||
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| 54.18 | 1.9% | 55.25 | 1-0 | |||||||||
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| 43 | 7.4% | 47 | 1-0 | |||||||||
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| scored | 0.1% | scored | 1-1 | |||||||||
|
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| scored | 5.7% | scored | 2-0 | |||||||||
|
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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. "Scored" rows are subjective driver ratings: each test uses its own scale, so only the wins are counted.
Scores beyond the shared tests
On the Tire Reviews Score, which weighs every test and review we hold, the Potenza Sport AS scores 6.6 and the Pilot Sport All Season 4 9.4 out of 10.
| Potenza Sport AS | Category | Pilot Sport All Season 4 | ||
|---|---|---|---|---|
| 19 | Dry | 89 | ||
| 22 | Wet | 96 | ||
| 54 | Comfort | 58 | ||
| 86 | Snow | 68 | ||
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.
What owners say
| Potenza Sport AS | Category | Pilot Sport All Season 4 | ||
|---|---|---|---|---|
| 7.8 | Dry Grip | 8.9 | ||
| 7.7 | Wet Grip | 8.9 | ||
| 8.3 | Road Feedback | 7.9 | ||
| 8 | Handling | 8.6 | ||
| 8 | Wear | 7.5 | ||
| 8 | Comfort | 7.1 | ||
| - | Snow Grip | 6.6 | ||
| - | Ice Grip | 5.9 | ||
Owners rate the Potenza Sport AS 79% from 4 reviews and the Pilot Sport All Season 4 79% from 36. Reviews are vetted by hand before publication; ownership is not verified.
Bridgestone Potenza Sport AS
- 79%from 4 reviews
- 38,800 milesdriven by reviewers
All 4 Potenza Sport AS reviewsThey are decent tire, not top of class from what I can tell. I do like that they are fairly comfortable on the road as far as noise and harshness. The weight and power of the MachE GT can overpower them pretty easy if really giving it the beans. They give me confidence in the rain and haven't had any issues there.
Good wear too, making sure I rotate at 10k miles.
Michelin Pilot Sport All Season 4
- 79%from 36 reviews
- 75%would buy again
- 319,243 milesdriven by reviewers
Owners rate the Michelin Pilot Sport All Season 4 highly overall, with strongest agreement around its sporty dry and wet performance for an all-season tire. Around two in five owners specifically praise dry grip and handling, and a similar share highlight confident wet grip that stays close to its dry feel. The main drawback is noise, with around three in ten owners complaining it can be noticeably loud on certain roads or speeds. Views on steering feel, snow ability and tread life are more mixed, and several owners note it is not a substitute for a proper winter tire on ice or deep snow.
- Strong dry grip for an all-season
- Confident dry handling with a sporty feel
- High wet grip and confidence in the rain
- Aquaplaning resistance in standing water
- Noticeable road noise, sometimes very loud
- Steering feel not as sharp as a true summer tire
- Tread life can be disappointing for some drivers
Summarised by AI from 33 vetted reviews; the reviews themselves are on the tire page.
All 36 Pilot Sport All Season 4 reviewsExcellent dry and wet grip. Snow is ok for the tire it is, but you should not depend on this tire to get you there once any measurable snow is on the ground. Road noise is ok and wear is pretty good. I don't make it to the 50k warranty, but it is nice that they discount my next set when I don't. This is my second set of AS4's. I MIGHT look at the DWS 6 next time just because of the better snow traction, but overall I am very happy with these tires.
Sizes, EU label and lineage
| Category | Potenza Sport AS | Pilot Sport All Season 4 |
|---|---|---|
| Season | All Season Run flat | All Season |
| On the market since | - | 2025 |
| Replaced | Bridgestone Potenza RE980AS Plus | Michelin Pilot Sport AS 3+ |
Reading the results
Written from the test results and owner reviews above. It is analysis, not a measurement: where it and the tables disagree, the tables are right.
This matchup pits two ultra-high-performance all-season tires with similar intent-deliver near-summer-like handling without giving up year-round usability-but they go about it very differently in Tire Rack's instrumented testing. Across two shared tests (225/45R18 in 2024 and 235/40R19 in 2026), the Michelin Pilot Sport All Season 4 repeatedly shows itself as the “numbers” tire: quicker laps, shorter stops, and higher measured grip, especially in the wet.
The Bridgestone Potenza Sport AS, by contrast, reads as the more comfort/road-manners-leaning alternative in these results. It doesn't match the Michelin's outright traction on dry or wet pavement, but it consistently scores better for noise (and sometimes comfort) and shows a surprising edge in certain winter metrics (notably ice braking and snow handling), suggesting a different balance of compound and tuning priorities.
Conclusion
Looking at both tests together, the Michelin Pilot Sport All Season 4 is the clear objective performance leader where most UHP all-season buyers care most: dry and especially wet grip. It beat the Bridgestone in dry braking by ~5-6% in both tests (33.44 m vs 35.33 m in 2026; 34.44 m vs 36.58 m in 2024) and in wet braking by ~10% (40.42 m vs 44.84 m in 2026; 39.62 m vs 44.20 m in 2024). It also turned quicker laps in dry and wet handling, reinforcing that this isn't a single-metric win-it's a consistent traction advantage.
The Bridgestone Potenza Sport AS's case is more nuanced: it tends to be rated quieter and, depending on the test, can feel better blended on-road (it won subjective noise in both tests and subjective road score in 2026). It also shows winter “bright spots,” edging the Michelin in snow handling (54.18 s vs 55.25 s) and notably in ice braking (13.17 m vs 14.23 m). The practical takeaway is simple: if you prioritize maximum measurable grip and shorter stopping distances-particularly in the wet-the Michelin is the safer, faster choice. If you're more sensitive to cabin noise and want a calmer daily-driver demeanor with some winter traction highlights (especially on ice), the Bridgestone has appeal, but you're trading away a meaningful amount of wet and dry braking performance.
Potenza Sport AS vs Pilot Sport All Season 4: your questions
Is the Bridgestone Potenza Sport AS or the Michelin Pilot Sport All Season 4 the better tire?
In the 2 independent tests that ran both tires, the Michelin Pilot Sport All Season 4 finished ahead 2 times and the Potenza Sport AS not once. On the Tire Reviews Score, which weighs every test and review we hold, the Potenza Sport AS scores 6.6 and the Pilot Sport All Season 4 9.4 out of 10.
Which is better in the wet, the Potenza Sport AS or the Pilot Sport All Season 4?
The Pilot Sport All Season 4 led 5 of the 5 wet measurements the shared tests recorded. On average it stopped 10.1% shorter in the wet across 2 tests.
Which is better in the dry?
The Pilot Sport All Season 4 led 6 of the 7 dry measurements the shared tests recorded. On average it stopped 5.6% shorter in the dry across 2 tests.
Which is better in snow?
Across the shared tests the snow measurements are split 1-1 between the Potenza Sport AS and the Pilot Sport All Season 4.
Which is quieter and more comfortable?
Owners rate comfort 8/10 for the Potenza Sport AS and 7.1/10 for the Pilot Sport All Season 4.
What do owners say?
Owners rate the Potenza Sport AS 79% from 4 reviews and the Pilot Sport All Season 4 79% from 36.
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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.
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