Bridgestone Potenza Sport AS vs Michelin Pilot Sport All Season 4 — this is a true UHP all-season showdown: two tires built to feel sharp and confident when the road (and the weather) refuses to cooperate. One leans into aggressive, sporty response, the other into balanced grip with all-weather control — and in this segment, tiny differences in traction and feel can completely change what the car feels like.
We’ll run them head-to-head through wet grip, dry handling, comfort & noise, plus the ice and snow reality check, to decide which one actually fits your driving — and which tire you should buy.
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Results: Bridgestone Potenza Sport AS vs Michelin Pilot Sport All Season 4
Results below were taken from the Tire Rack’s “Ultra High Perforamnce All Season Tire” test. A total of 8 tires were tested on Tire Rack’s own proving ground. The graph below shows the comparison between Bridgestone Potenza Sport AS vs Michelin Pilot Sport All Season 4 based on the relevant performance category. The Bridgestone Potenza Sport AS was set as a reference hence at the 100% mark. Note that for subjective evaluation, we equate 1 point as 5%. Hence for example if tire A is graded 7 while tire B is graded 6, A is better than B by 5%.
As both tires are widely used in snow, Tire Rack has included snow & ice in its testing portfolio. A detailed testing on snow including acceleration, braking & handling were evaluated. The tire size of interest is a 225/45R18 which is a common tire size for Audi A4 & BMW 3 Series. You can check out our latest tire size table for more information. The testing vehicle is a BMW 3 Series.
Wet
In wet conditions, the Michelin Pilot Sport All Season 4 clearly holds the edge over the Bridgestone Potenza Sport AS. Michelin stops 15 feet shorter in wet braking, a 12% advantage, feels more secure with a 0.8-point higher subjective handling score (4% improvement), and runs 1.0 second quicker on the wet handling lap, a 3% gain.
In summary across braking, control, and outright pace, Michelin delivers the more confidence-inspiring and capable wet performance in this comparison.
Pilot Sport All Season 4 :
- +12% in wet braking
- +4% in wet handling (subj)
- +3% in wet handling (lap time)
Dry
In dry conditions, the Michelin Pilot Sport All Season 4 again comes out ahead of the Bridgestone Potenza Sport AS. Michelin stops 7 feet shorter in dry braking, a 6% advantage, feels more precise and stable with a 0.7-point higher subjective handling score (3% improvement), and laps the dry handling course 0.31 seconds quicker, a 1% gain.
Overall the differences are smaller than in the wet, but Michelin still delivers sharper control, shorter stopping distances, and slightly higher dry-grip confidence overall.
Pilot Sport All Season 4 :
- +6% in dry braking
- +3% in dry handling (subj)
- +1% in dry handling (lap time)
Noise, Comfort & Ride Quality
In noise, comfort, and ride quality, the Bridgestone Potenza Sport AS holds a small advantage over the Michelin Pilot Sport All Season 4. Bridgestone scores 0.25 points higher, which works out to about a 1% improvement, translating to a slightly calmer ride and better isolation over everyday road surfaces.
Pilot Sport All Season 4 :
- -1% in Noise, Comfort & Ride Quality
Snow
In snow, the results are more mixed between the two. Snow braking is nearly identical, with the Michelin Pilot Sport All Season 4 stopping just 0.6 feet shorter, a negligible 1% advantage. In snow acceleration, Michelin finds grip sooner, pulling 1.7 feet ahead, a 8% improvement. However, when it comes to control, the Bridgestone Potenza Sport AS feels more confidence-inspiring, scoring 1.3 points higher in subjective snow handling, a sizeable 7% edge, and circulating the snow handling course 1.1 seconds quicker, about a 2% advantage.
Michelin offers slightly better straight-line traction, while Bridgestone delivers stronger driver confidence and control once you’re turning on snow.
Pilot Sport All Season 4 :
- +1% in snow braking
- +8% in snow acceleration
- -7% in snow handling (subj)
- -2% in snow handling (lap time)
Ice
On ice, the Bridgestone Potenza Sport AS has the clear advantage. Bridgestone stops 3.5 feet shorter than the Michelin Pilot Sport All Season 4, delivering a 7% improvement in ice braking.
Pilot Sport All Season 4 :
- -7% in ice braking
Mileage
Bridgestone’s Potenza Sport AS has a higher UTQG treadwear (560 vs 540) and a longer mileage warranty (50k vs 45k miles) than the Michelin Pilot Sport All Season 4. That means Bridgestone should last a bit longer on both ratings and warranty.
| Brand | Tireline | Size | Tread Wear | Traction | Temperature |
|---|---|---|---|---|---|
| Bridgestone | Potenza Sport AS | All | 560 | A | A |
| Michelin | Pilot Sport All Season 4 | All | 540 | AA | A |
Price
For size 225/45R18, the Michelin Pilot Sport All Season 4 at $223 is about 2% more expensive than the Bridgestone Potenza Sport AS at $219.
Tire size: 225/45R18
Potenza Sport AS : $ 219
Pilot Sport All Season 4 :$ 223
Difference: +2% more expensive for Pilot Sport All Season 4.
Summary
As a tire expert, here’s my bottom-line take: the Michelin Pilot Sport All Season 4 impresses with stronger wet and dry grip, shorter stopping distances, and more confident all-weather performance, making it my pick if you prioritize year-round traction and handling. The Bridgestone Potenza Sport AS, on the other hand, brings slightly better comfort and refinement, better snow handling, longer mileage warranty, and stronger ice braking, which can matter if you’re focused on durability and a smoother everyday ride.
Dr Edwin Pang