It's the second time in history the new Bridgestone Potenza Sport has been tested in a tyre test, and it's super exciting to see whether it can it match the first place from the Auto Bild Sportscars test!
There are some small differences between the two tests. Firstly, Auto Bild tested 20" tyres using a Ford Mustang, where for this test Sport Auto have used the Toyota Supra / BMW Z4 platform which wears 255/35 R19 front and 275/35 R19 rear tyres.
Sport Auto have also added a little depth to the test by including both UUHP (or Maximum Performance) and UHP tyres, which means we get the Goodyear Eagle F1 Asymmetric 5 up against the best from Michelin and Bridgestone, not the Goodyear Eagle F1 SuperSport.
Sport Auto have also provided lots of data about the tyres on test, which you'll see in the results below underneath the images, and it's interesting to see Bridgestone have been punchy with a starting tread depth of just 6.7mm on the front tyre, way lower than the 7.4mm of the Michelin and 8mm of the Goodyear. Please note, the information listed below is for the rear 275/35 R19 size, if you'd like the data for the front size please head over to the Sport Auto website.
UUHP vs UHP
Analyzing the differences between the best UUHP and best UHP tyres brings up some interesting data.
In the dry, the UUHP tyres from Michelin and Bridgestone were unrivaled in both braking and handling, with the testers also noting they had the sportiest handling on test.
The wet testing muddied the water a little. The UUHP Michelin had the shortest wet braking, but Falken managed to beat the Bridgestone to second place. Falken also dominated the wet handling test, ahead of second placed UHP Goodyear with the Bridgestone having to settle for third and the Michelin down in seventh! Somewhat strangely, the wet circle test brought the advantage back to the UUHP tyres, with Michelin leading Bridgestone, which could mean the water depth on the wet handling circuit was too much for the UUHP tyres at points, as the UHP tyres were the clear leaders in the aquaplaning tests.
Dry
The new Potenza Sport led the way in dry braking with a small advantage over the Michelin Pilot Sport 4S.
Dry Braking
Spread: 4.40 M (13.3%)|Avg: 34.53 M
Dry braking in meters (100 - 0 km/h) (Lower is better)
Bridgestone Potenza Sport
33.10 M
Michelin Pilot Sport 4 S
33.30 M
Maxxis Victra Sport 5
33.90 M
Goodyear Eagle F1 Asymmetric 5
34.00 M
Continental Sport Contact 6
34.30 M
Falken Azenis FK510
34.30 M
Toyo Proxes Sport
35.80 M
Nankang Sportnex AS2 Plus
37.50 M
Dry handling matched the first two positions of dry braking, with the Continental SportContact 6 taking an impressive third place.
Dry Handling
Spread: 4.10 Km/H (3.2%)|Avg: 127.74 Km/H
Dry Handling Average Speed (Higher is better)
Bridgestone Potenza Sport
129.30 Km/H
Michelin Pilot Sport 4 S
129.20 Km/H
Continental Sport Contact 6
129.00 Km/H
Goodyear Eagle F1 Asymmetric 5
128.30 Km/H
Falken Azenis FK510
127.20 Km/H
Maxxis Victra Sport 5
127.00 Km/H
Toyo Proxes Sport
126.70 Km/H
Nankang Sportnex AS2 Plus
125.20 Km/H
Unsurprisingly the two fastest tyres on test also had the best subjectively handling, with the Continental and Goodyear the best of the UHP tyres.
Subj. Dry Handling
Spread: 5.00 Points (50%)|Avg: 8.00 Points
Subjective Dry Handling Score (Higher is better)
Michelin Pilot Sport 4 S
10.00 Points
Bridgestone Potenza Sport
10.00 Points
Continental Sport Contact 6
9.00 Points
Goodyear Eagle F1 Asymmetric 5
9.00 Points
Falken Azenis FK510
8.00 Points
Maxxis Victra Sport 5
7.00 Points
Toyo Proxes Sport
6.00 Points
Nankang Sportnex AS2 Plus
5.00 Points
Wet
The top three positions in wet braking were covered by just 0.3 meters, with the updated Toyo Proxes Sport A still struggling in the wet.
Wet Braking
Spread: 7.40 M (21.7%)|Avg: 35.88 M
Wet braking in meters (80 - 0 km/h) (Lower is better)
Michelin Pilot Sport 4 S
34.10 M
Falken Azenis FK510
34.20 M
Bridgestone Potenza Sport
34.30 M
Goodyear Eagle F1 Asymmetric 5
34.60 M
Maxxis Victra Sport 5
35.10 M
Nankang Sportnex AS2 Plus
36.50 M
Continental Sport Contact 6
36.70 M
Toyo Proxes Sport
41.50 M
The Falken FK510 again proved its wet mastery, edging out the Goodyear for the fastest average speed around the lap. The Michelin Pilot Sport 4S seemed to unusually struggle, posting the second slowest time.
Wet Handling
Spread: 4.20 Km/H (5.8%)|Avg: 71.21 Km/H
Wet Handling Average Speed (Higher is better)
Falken Azenis FK510
72.80 Km/H
Goodyear Eagle F1 Asymmetric 5
72.60 Km/H
Bridgestone Potenza Sport
72.00 Km/H
Continental Sport Contact 6
71.70 Km/H
Maxxis Victra Sport 5
71.20 Km/H
Nankang Sportnex AS2 Plus
71.10 Km/H
Michelin Pilot Sport 4 S
69.70 Km/H
Toyo Proxes Sport
68.60 Km/H
The three fastest tyres also had the best subjective handling.
Subj. Wet Handling
Spread: 2.00 Points (22.2%)|Avg: 8.00 Points
Subjective Wet Handling Score (Higher is better)
Falken Azenis FK510
9.00 Points
Goodyear Eagle F1 Asymmetric 5
9.00 Points
Bridgestone Potenza Sport
9.00 Points
Continental Sport Contact 6
8.00 Points
Nankang Sportnex AS2 Plus
8.00 Points
Michelin Pilot Sport 4 S
7.00 Points
Toyo Proxes Sport
7.00 Points
Maxxis Victra Sport 5
7.00 Points
Michelin improved its wet weather performance by producing the highest lateral G around the wet circle.
Wet Circle
Spread: 0.82 m/s (8.9%)|Avg: 8.99 m/s
Lateral wet grip in m/s squared (Higher is better)
Michelin Pilot Sport 4 S
9.23 m/s
Bridgestone Potenza Sport
9.16 m/s
Maxxis Victra Sport 5
9.14 m/s
Goodyear Eagle F1 Asymmetric 5
9.13 m/s
Continental Sport Contact 6
9.08 m/s
Falken Azenis FK510
9.05 m/s
Nankang Sportnex AS2 Plus
8.68 m/s
Toyo Proxes Sport
8.41 m/s
The Nankang AS2+ was impressively ahead in straight aquaplaning tests, however that didn't make up for the otherwise low grip.
Straight Aqua
Spread: 4.20 Km/H (4.6%)|Avg: 89.23 Km/H
Float Speed in Km/H (Higher is better)
Nankang Sportnex AS2 Plus
91.80 Km/H
Continental Sport Contact 6
89.80 Km/H
Toyo Proxes Sport
89.70 Km/H
Michelin Pilot Sport 4 S
89.20 Km/H
Goodyear Eagle F1 Asymmetric 5
89.10 Km/H
Falken Azenis FK510
88.50 Km/H
Bridgestone Potenza Sport
88.10 Km/H
Maxxis Victra Sport 5
87.60 Km/H
Environment
The spread of external noise was covered by just 1.9db.
Noise
Spread: 1.90 dB (2.7%)|Avg: 72.39 dB
External noise in dB (Lower is better)
Nankang Sportnex AS2 Plus
71.20 dB
Continental Sport Contact 6
71.90 dB
Michelin Pilot Sport 4 S
72.00 dB
Falken Azenis FK510
72.20 dB
Goodyear Eagle F1 Asymmetric 5
72.70 dB
Toyo Proxes Sport
72.90 dB
Maxxis Victra Sport 5
73.10 dB
Bridgestone Potenza Sport
73.10 dB
The Continental SportContact 6 had the lowest rolling resistance on test, with the new Bridgestone posting it's first test loss.
Rolling Resistance
Spread: 1.40 kg / t (16.9%)|Avg: 9.09 kg / t
Rolling resistance in kg t (Lower is better)
Continental Sport Contact 6
8.30 kg / t
Goodyear Eagle F1 Asymmetric 5
8.70 kg / t
Michelin Pilot Sport 4 S
8.80 kg / t
Nankang Sportnex AS2 Plus
9.00 kg / t
Maxxis Victra Sport 5
9.00 kg / t
Falken Azenis FK510
9.50 kg / t
Toyo Proxes Sport
9.70 kg / t
Bridgestone Potenza Sport
9.70 kg / t
Unsurprisingly the Nankang was cheapest, but surprisingly the Bridgestone was actually more expensive than the Michelin, at over 1000 Euros for a set.
Very short braking distances in the wet and dry, high levels of grip, very direct steering response and very high steering prevision in the dry, low rolling resistance.
Very narrow grip limit with tendency to oversteer in the wet, slight restrictions in ride comfort.
The Pilot Sport 4S delivers precise, reliable steering and top grip in the dry and wet.
A very wall balanced tyre with excellent handling in the dry, forgiving and still sporty in the dry, low rolling resistance, high driving stability and good comfort.
Not a very dynamic steering response, higher noise levels.
The Asymmetric 5 is sporty and comfortable for every day safety in any weather.