Hankook Winter I cept RS3 vs Toyo Observe EWS1
In the 2 independent tests that ran both tyres, the Hankook Winter I cept RS3 finished ahead 2 times and the Observe EWS1 not once. The Winter I cept RS3 was stronger in snow, comfort and value, the Observe EWS1 in dry, wet and ice.
Performance profile
13 measurements from the 2 shared tests, each tyre shown as its share of the better figure in every test.
Where each is furthest ahead
Winter I cept RS3
Observe EWS1
Point at or tap any spoke for both tyres' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 36 m stop against 34.2 m is 95%; each spoke averages the shared tests that recorded it.
Where each scores higher
Winter I cept RS3
Observe EWS1
Point at or tap any spoke for both tyres' figures.
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Every measurement, side by side
Averages of the figures both tyres 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. Wins count the tests in which each tyre did better.
| Measurement | Winter I cept RS3 | Gap | Observe EWS1 | Wins |
|---|---|---|---|---|
| Dry Observe EWS1 ahead | ||||
| Dry Braking m | 44.55 | 4.1% | 42.75 | 0-2 |
| Wet Observe EWS1 ahead | ||||
| Wet Braking m | 42.25 | = | 42.05 | 1-1 |
| Wet Braking - Concrete m | 40.2 | 1.2% | 39.7 | 0-1 |
| Straight Aqua km/h | 78.7 | 2.2% | 80.4 | 0-1 |
| Curved Aquaplaning m/sec2 | 3 | = | 3 | 0-0 |
| Snow Winter I cept RS3 ahead | ||||
| Snow Braking m | 17.65 | 7.6% | 18.9 | 2-0 |
| Snow Traction N | 2,518 | 8.7% | 2,316 | 1-0 |
| Ice Observe EWS1 ahead | ||||
| Ice Braking m | 18.5 | 4.9% | 17.6 | 0-1 |
| Comfort Winter I cept RS3 ahead | ||||
| Noise dB | 72.8 | 0.9 dB | 73.7 | 1-0 |
| Value Winter I cept RS3 ahead | ||||
| Wear km | 42,611 | 8.2% | 45,981 | 1-1 |
| Rolling Resistance kg / t | 8.53 | 3.9% | 8.88 | 1-0 |
| Fuel Consumption l/100km | 5.6 | 1.8% | 5.7 | 1-0 |
| Abrasion mg/km/t | 72 | 1.4% | 71 | 0-1 |
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 tyres shared.
Head to head in 2 tests in 2026
Each row is one published test in which both tyres ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Winter I cept RS3 | Field | Observe EWS1 |
|---|---|---|---|
| 2026 AvD Winter Tyre Test | P7 of 15 | P12 of 15 | |
| 2026 ADAC Winter Tyre Test - 225/50 R17 | P6 of 16 | P12 of 16 |
Winter I cept RS3 vs Observe EWS1: your questions
Is the Hankook Winter I cept RS3 or the Toyo Observe EWS1 the better tyre?
In the 2 independent tests that ran both tyres, the Hankook Winter I cept RS3 finished ahead 2 times and the Observe EWS1 not once. On the Tyre Reviews Score, which weighs every test and review we hold, the Winter I cept RS3 scores 8.8 and the Observe EWS1 9.1 out of 10.
Which is better in the wet, the Winter I cept RS3 or the Observe EWS1?
The Observe EWS1 led 3 of the 5 wet measurements the shared tests recorded.
Which is better in the dry?
The Observe EWS1 led 2 of the 2 dry measurements the shared tests recorded. On average it stopped 4.1% shorter in the dry across 2 tests.
Which is better in snow?
The Winter I cept RS3 led 3 of the 3 snow measurements the shared tests recorded. On average it stopped 7.6% shorter on snow across 2 tests.
Which is quieter and more comfortable?
Owners rate comfort 6.7/10 for the Winter I cept RS3 and 7/10 for the Observe EWS1.
What do owners say?
Owners rate the Winter I cept RS3 77% from 28 reviews and the Observe EWS1 85% from 2.
Which is more expensive?
In the 2 tests that listed prices, the Winter I cept RS3 was the dearer tyre in 2 of them, by 18.5% on average. Prices are the test's own at the time, in its own market.
Are they available in the same sizes?
The Winter I cept RS3 is made in 46 sizes (14 to 17 inch) and the Observe EWS1 in 79 (15 to 21 inch). 15 sizes are available in both. On the EU label the Winter I cept RS3 is graded B for wet grip and C for rolling resistance in most sizes; the Observe EWS1 B and C.
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Run either of these?
Your review is the part of this page no test can supply: how the tyre 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 tyres 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 Tyre Reviews Score rates each tyre out of 10 from every independent test result and vetted owner review we hold, so two tyres can be compared even before a test has run them together.
Who does the testing
Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.