Tire testing is incredibly complicated to conduct, and one of the most difficult parts of testing is good repeatability.
Take for example wet braking. To get the wet braking distance of a tire, you don't just do the braking run once, you do it 6-8 times, delete the outliers then average out the results. Even on the most expensive test facilities in the world, with the most perfect sprinkler systems and perfect tarmac, you rarely get the same distance twice as there are so many variables, which means when you use a less than state of the art facility, results can be surprising.
This brings us on to this test by the Italian publication "al volante".
On the surface, this should be a very interesting test, as it includes the new Goodyear EfficientGrip Performance 2 and the new Pirelli Cinturato P7 C2, but after initial inspection, the test seemed of limited use.
Firstly, we've never seen such a big advantage in wet braking by a single tire as this test, and having spoken to Continental they're unsure of why it was so large. Secondly, while the Ultrac Satin has never been the best dry braking tire, 8 meters difference from just 100 KM/H is almost unheard of. Thirdly, the testers indicate in their writing that dry handling was conducted, but no times were given, and lastly with a 25% difference in wet braking, I would have expected much more than a 2% difference in wet handling, especially over a 100 second lap!
Having spoken to a number of tire manufacturers in this test, it seems the test wasn't conducted at a permanent facility, but a temporary one, which could explain the interesting results below.
In short, this is another piece of information to help you select the best tires for your vehicle, but perhaps it's best not to read into this test too much. Make sure to browse all the other tests available on Tire Reviews.
Dry
Dry Braking
Spread: 8.00 M (22.5%)|Avg: 37.89 M
Dry braking in meters (Lower is better)
Dry Braking: Safety Impact: Best vs Worst Tire
Wet
Wet Braking
Spread: 6.70 M (25.3%)|Avg: 29.98 M
Wet braking in meters (Lower is better)
Wet Braking: Safety Impact: Best vs Worst Tire
Wet Handling
Spread: 3.00 s (3%)|Avg: 102.13 s
Wet handling time in seconds (Lower is better)
Hankook Ventus Prime 3 K125
101.20 s
Bridgestone Turanza T005
101.20 s
Goodyear EfficientGrip Performance
101.40 s
Michelin Primacy 4
101.60 s
Continental Premium Contact 6
101.70 s
Pirelli Cinturato P7 C2
101.90 s
Nokian WetProof
101.90 s
Falken ZIEX ZE310 EcoRun
102.10 s
Roadhog RGHP01
104.10 s
Vredestein Ultrac Satin
104.20 s
Straight Aqua
Spread: 2.80 Km/H (3.7%)|Avg: 74.91 Km/H
Float Speed in Km/H (Higher is better)
Continental Premium Contact 6
75.90 Km/H
Falken ZIEX ZE310 EcoRun
75.30 Km/H
Hankook Ventus Prime 3 K125
75.20 Km/H
Bridgestone Turanza T005
75.20 Km/H
Vredestein Ultrac Satin
75.10 Km/H
Goodyear EfficientGrip Performance
75.00 Km/H
Nokian WetProof
75.00 Km/H
Pirelli Cinturato P7 C2
74.70 Km/H
Michelin Primacy 4
74.60 Km/H
Roadhog RGHP01
73.10 Km/H
Environment
Rolling Resistance
Spread: 2.50 kg / t (36.2%)|Avg: 8.37 kg / t
Rolling resistance in kg t (Lower is better)
Bridgestone Turanza T005
6.90 kg / t
Michelin Primacy 4
7.40 kg / t
Goodyear EfficientGrip Performance
7.60 kg / t
Roadhog RGHP01
7.80 kg / t
Continental Premium Contact 6
8.70 kg / t
Hankook Ventus Prime 3 K125
8.70 kg / t
Pirelli Cinturato P7 C2
8.70 kg / t
Vredestein Ultrac Satin
9.20 kg / t
Nokian WetProof
9.30 kg / t
Falken ZIEX ZE310 EcoRun
9.40 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 tire age. For comparative purposes only. Lifetime savings based on a 40,000km / 25,000 mile tread life.