Apollo Alnac 4G Winter vs Cooper Weather Master SA2+
Ahead in each discipline
The Apollo Alnac 4G Winter and the Cooper Weather Master SA2+ have met in 2 independent tests and the record is level at 1-1. The Alnac 4G Winter was stronger in snow, the Weather Master SA2+ in wet.
Performance profile
Their shared tests recorded too few of the same measurements to chart, so the chart starts from each tire's Tire Reviews Score categories: its whole record, not shared tests.
Where each scores higher
Alnac 4G Winter
Weather Master SA2+
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
Alnac 4G Winter
Weather Master SA2+
Not ahead in any category
Point at or tap any spoke for both tires' figures.
Owners rate the Alnac 4G Winter 89% from 4 reviews and the Weather Master SA2+ 68% from 6. 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. Wins count the tests in which each tire did better.
| Measurement | Alnac 4G Winter | Gap | Weather Master SA2+ | Wins |
|---|---|---|---|---|
| Wet Weather Master SA2+ ahead | ||||
| Wet Braking ft | 125 | 5.5% | 118 | 0-1 |
| Snow Alnac 4G Winter ahead | ||||
| Snow Braking ft | 97 | 2.3% | 99 | 1-0 |
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.
Head to head in 2 tests, 2018 to 2021
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 | Alnac 4G Winter | Field | Weather Master SA2+ |
|---|---|---|---|
| 2021 Winter Tire Market Overview | P30 of 50 | P22 of 50 | |
| 2018 51 Winter Tire Shootout | P22 of 52 | P25 of 52 |
Alnac 4G Winter vs Weather Master SA2+: your questions
Is the Apollo Alnac 4G Winter or the Cooper Weather Master SA2+ the better tire?
The Apollo Alnac 4G Winter and the Cooper Weather Master SA2+ have met in 2 independent tests and the record is level at 1-1. On the Tire Reviews Score, which weighs every test and review we hold, the Alnac 4G Winter scores 8.3 and the Weather Master SA2+ 4.9 out of 10.
Which is better in the wet, the Alnac 4G Winter or the Weather Master SA2+?
The Weather Master SA2+ led 1 of the 1 wet measurements the shared tests recorded.
Which is better in snow?
The Alnac 4G Winter led 1 of the 1 snow measurements the shared tests recorded.
Which is quieter and more comfortable?
Owners rate comfort 9/10 for the Alnac 4G Winter and 8.2/10 for the Weather Master SA2+.
What do owners say?
Owners rate the Alnac 4G Winter 89% from 4 reviews and the Weather Master SA2+ 68% from 6.
Are they available in the same sizes?
The Alnac 4G Winter is made in 26 sizes (13 to 16 inch) and the Weather Master SA2+ in 35 (13 to 18 inch). 19 sizes are available in both. On the EU label the Alnac 4G Winter is graded C for wet grip and D for rolling resistance in most sizes; the Weather Master SA2+ B and D.
Which is the newer tire?
The Weather Master SA2+ is the newer design: it reached the market in 2022, the Alnac 4G Winter in 2014. The Weather Master SA2+ replaced the Cooper WM SA2.
More comparisons with these tires
Run either of these?
Your review is the part of this page no test can supply: how the tire 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 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.