The Norwegian AutoMobile Federation (NAF) has tested seven summer tyre patterns in 205/55 R16, and included a premium winter tyre for comparison.
The winter tyre performed surprisingly well during the wet braking testing, which was tested between 18 and 25c, beating the Dunlop and Bridgestone summer tyres. Wet handling showed a little more weakness, with the winter tyre finishing last, but it was still within a few percent of the summer tyres.
As with all siped tyres, the penalty came in the dry. Testing at 21-23c, the winter tyre was at a huge disadvantage, stopping the car nearly 30% further on than the best summer tyre on test, which is the difference between stopping safely, and having a huge accident! While the tyre was closer during dry handling, it was still significantly slower than all the summer tyres.
Let this test be a good reminder as to why we shouldn't run winter tyres, or winter-bias all season tyres across the dry summer months.
Full data below.
Dry
Dry Braking
Spread: 11.40 M (32.9%)|Avg: 36.95 M
Dry braking in meters (Lower is better)
Dry Braking: Safety Impact: Best vs Worst Tyre
Dry Handling
Spread: 2.61 s (2.4%)|Avg: 109.34 s
Dry handling time in seconds (Lower is better)
Continental Premium Contact 6
108.52 s
Firestone RoadHawk
108.94 s
Dunlop Sport BluResponse
109.00 s
Bridgestone Turanza T005
109.01 s
Goodyear EfficientGrip Performance
109.31 s
Nokian Hakka Blue 2
109.38 s
Michelin Primacy 4
109.40 s
Reference Winter
111.13 s
Wet
Wet Braking
Spread: 4.00 M (8.1%)|Avg: 51.39 M
Wet braking in meters (Lower is better)
Wet Braking: Safety Impact: Best vs Worst Tyre
Wet Handling
Spread: 2.05 s (3%)|Avg: 70.46 s
Wet handling time in seconds (Lower is better)
Continental Premium Contact 6
69.46 s
Firestone RoadHawk
69.82 s
Bridgestone Turanza T005
70.08 s
Nokian Hakka Blue 2
70.18 s
Dunlop Sport BluResponse
70.38 s
Goodyear EfficientGrip Performance
71.09 s
Michelin Primacy 4
71.14 s
Reference Winter
71.51 s
Straight Aqua
Spread: 10.30 Km/H (11.4%)|Avg: 83.19 Km/H
Float Speed in Km/H (Higher is better)
Reference Winter
90.10 Km/H
Nokian Hakka Blue 2
84.00 Km/H
Michelin Primacy 4
83.80 Km/H
Dunlop Sport BluResponse
82.80 Km/H
Firestone RoadHawk
81.90 Km/H
Goodyear EfficientGrip Performance
81.80 Km/H
Bridgestone Turanza T005
81.30 Km/H
Continental Premium Contact 6
79.80 Km/H
Environment
Rolling Resistance
Spread: 0.28 kg / t (5.2%)|Avg: 5.51 kg / t
Rolling resistance in kg t (Lower is better)
Bridgestone Turanza T005
5.34 kg / t
Goodyear EfficientGrip Performance
5.39 kg / t
Continental Premium Contact 6
5.48 kg / t
Dunlop Sport BluResponse
5.51 kg / t
Michelin Primacy 4
5.57 kg / t
Firestone RoadHawk
5.58 kg / t
Reference Winter
5.61 kg / t
Nokian Hakka Blue 2
5.62 kg / t
19,000 km
£1.45/L
8.0 L/100km
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Annual Difference
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Lifetime Savings
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Extra Fuel/Energy
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Extra CO2
Estimates based on typical driving conditions. Rolling resistance accounts for approximately 20% of IC vehicle fuel consumption and 25% of EV energy consumption. Actual savings vary based on driving style, vehicle weight, road conditions, and tyre age. For comparative purposes only. Lifetime savings based on a 40,000km / 25,000 mile tread life.