Comparison: Barum Polaris 5 vs. Kumho WinterCraft WP51

Wet roads are where the Barum's weaknesses are most documented — and where the mutual test data is most revealing. In AutoBild's 2021 braking test, the Barum stopped in 36.1m on wet roads versus 37.8m for the Kumho, a 1.7-metre advantage to the Barum across a 205/55 R16 representative size. That is a meaningful gap at real-world speeds and runs counter to the Kumho's higher aquaplaning scores. Testers have repeatedly flagged the Polaris 5's limited wet grip reserves and understeer on wet roads as its most consistent weakness, and the EU label's C wet grip rating underlines this. Yet the Kumho posts a very similar C rating, and in the actual braking test it was worse — suggesting the Kumho's wet aquaplaning resistance is genuine while its braking sharpness on wet surfaces is not. Real-world wet conditions reward neither tyre unconditionally, but the Barum edges it in the numbers that matter most.

Dry winter performance is closer than the test rankings suggest. The Kumho WP51 holds a small edge in dry braking, averaging around 72.8 in braking scores versus the Barum's 69.1, and its dry handling composite is modestly stronger. Barum itself positions the Polaris 5 as offering dynamic dry handling, and testers have confirmed it behaves safely on dry winter roads — controlled and predictable if not especially sharp. The Kumho's dry handling scores in measured testing are also respectable. Neither tyre will worry a driver in cold but clear conditions, but the Kumho's slightly more assured dry character does give it a narrow advantage here that the braking averages reflect.

Snow is the most competitive ground between these two, and the most relevant given both are winter tyres. In the AutoBild braking test, the Barum averaged 28.8m on snow against 29.8m for the Kumho — a one-metre advantage that is consistent with the Barum's strong test profile in this area. The Kumho's own snow braking and ice performance scores are solid, and its ice grip data is notably good, suggesting it handles compacted and icy surfaces with genuine competence. The Barum Polaris 5 is designed with optimised block geometry and multifunctional sipes to maximise grip in all directions on snow, and the test results confirm this delivers. Owner feedback is mixed but leans positive on snow — one Skoda Rapid owner praised the Polaris 5 as better than the Polaris 3 with incredible braking on ice, while another BMW xDrive owner found it underwhelming in town snow. On balance the Barum leads on snow, but the Kumho is a genuine winter performer, particularly on ice.

The Barum Polaris 5 is the more economical tyre by a considerable margin. Its rolling resistance score of 82 is one of the strongest in the low-cost winter segment — ADAC independently confirmed it as the lowest fuel consumption in its test group — while the Kumho WP51 scores just 49 in the same metric, a significant difference that will show up in real-world fuel bills over a full winter season. The Barum also leads on projected mileage (72.4 vs 66.7), and some WeatherProof owners have flagged faster-than-expected wear. On noise and ride comfort the Barum has a meaningful advantage too, with owners regularly noting how quiet it is for a budget winter tyre. The Kumho is not especially refined, and ADAC noted it as relatively loud in testing.