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Test Charts / Auto Bild Sportscars

2023 AutoBild Sports Car Summer Tyre Test

Compare each discipline in the tested size. See the measured result, position and gap to the best tyre, then read the verdict for the trade-offs behind the finishing order.

Tested size
225/40 R18
Tyres tested
13
Disciplines
9

Read the measurements, not just the rank

Lower is better for braking distances and lap times; higher is better for subjective scores and aquaplaning speed. Bars start at zero. Read the gap alongside the position: adjacent tyres can be separated by very different margins.

Positions and gaps always refer to the full test field within each group. Selecting tyres does not recalculate rankings or change the best-in-test benchmark.

Dry

2

Dry Braking

Dry braking in meters (100 - 0 km/h)

Lower is better ↓
Dry Braking
Position / TyreResultGap to bestResidual speed
33.3 m Best 0 km/h
33.5 m +0.20 m 10 km/h
34.3 m +1.00 m 22 km/h
34.4 m +1.10 m 23 km/h
34.5 m +1.20 m 24 km/h
34.7 m +1.40 m 26 km/h
34.7 m +1.40 m 26 km/h
35 m +1.70 m 29 km/h
35.1 m +1.80 m 29 km/h
35.3 m +2.00 m 31 km/h
35.5 m +2.20 m 32 km/h
36.1 m +2.80 m 36 km/h
38.6 m +5.30 m 48 km/h

The difference between best and worst was 15.9% (5.3 m ≈ 1.2 Car Lengths). From 130 km/h, the Superia Ecoblue UHP would still be travelling at 48 km/h when the Continental SportContact 7 had stopped.

Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.

Dry Handling

Dry Handling Average Speed

Higher is better ↑
Dry Handling
Position / TyreResultGap to best
115.5 km/h Best
115.2 km/h -0.30 km/h
115.1 km/h -0.40 km/h
114.6 km/h -0.90 km/h
114.4 km/h -1.10 km/h
114.4 km/h -1.10 km/h
114.3 km/h -1.20 km/h
114.3 km/h -1.20 km/h
114.1 km/h -1.40 km/h
113.9 km/h -1.60 km/h
112.7 km/h -2.80 km/h
112.2 km/h -3.30 km/h
109.3 km/h -6.20 km/h

The difference between best and worst was 5.4% (6.2 Km/H).

Wet

5

Wet Braking

Wet braking in meters (100 - 0 km/h)

Lower is better ↓
Wet Braking
Position / TyreResultGap to bestResidual speed
38.8 m Best 0 km/h
38.9 m +0.10 m 7 km/h
39.1 m +0.30 m 11 km/h
40.8 m +2.00 m 29 km/h
41.2 m +2.40 m 31 km/h
41.3 m +2.50 m 32 km/h
42.2 m +3.40 m 37 km/h
42.4 m +3.60 m 38 km/h
43 m +4.20 m 41 km/h
43.2 m +4.40 m 41 km/h
43.5 m +4.70 m 43 km/h
43.6 m +4.80 m 43 km/h
50.2 m +11.40 m 62 km/h

The difference between best and worst was 29.4% (11.4 m ≈ 2.5 Car Lengths). From 130 km/h, the Superia Ecoblue UHP would still be travelling at 62 km/h when the Continental SportContact 7 had stopped.

Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.

Wet Handling

Wet Handling Average Speed

Higher is better ↑
Wet Handling
Position / TyreResultGap to best
86.9 km/h Best
86.2 km/h -0.70 km/h
85.2 km/h -1.70 km/h
84.9 km/h -2.00 km/h
84.8 km/h -2.10 km/h
84.7 km/h -2.20 km/h
84.7 km/h -2.20 km/h
83.8 km/h -3.10 km/h
83 km/h -3.90 km/h
82.9 km/h -4.00 km/h
81.6 km/h -5.30 km/h
78.7 km/h -8.20 km/h
73 km/h -13.90 km/h

The difference between best and worst was 16% (13.9 Km/H).

Wet Circle

Wet Circle Lap Time in seconds

Lower is better ↓
Wet Circle
Position / TyreResultGap to best
11.04 s Best
11.05 s +0.01 s
11.07 s +0.03 s
11.08 s +0.04 s
11.09 s +0.05 s
11.09 s +0.05 s
11.13 s +0.09 s
11.19 s +0.15 s
11.24 s +0.20 s
11.25 s +0.21 s
11.4 s +0.36 s
11.55 s +0.51 s
11.66 s +0.62 s

The difference between best and worst was 5.6% (0.62 s).

Straight Aqua

Float Speed in Km/H

Higher is better ↑
Straight Aqua
Position / TyreResultGap to best
78.6 km/h Best
77.9 km/h -0.70 km/h
77.9 km/h -0.70 km/h
77.8 km/h -0.80 km/h
77.6 km/h -1.00 km/h
77.5 km/h -1.10 km/h
76.9 km/h -1.70 km/h
76.3 km/h -2.30 km/h
75.6 km/h -3.00 km/h
74.6 km/h -4.00 km/h
74.4 km/h -4.20 km/h
72.8 km/h -5.80 km/h
68.7 km/h -9.90 km/h

The difference between best and worst was 12.6% (9.9 Km/H).

Curved Aquaplaning

Remaining lateral acceleration

Higher is better ↑
Curved Aquaplaning
Position / TyreResultGap to best
2.96 m/sec2 Best
2.84 m/sec2 -0.12 m/sec2
2.82 m/sec2 -0.14 m/sec2
2.75 m/sec2 -0.21 m/sec2
2.75 m/sec2 -0.21 m/sec2
2.72 m/sec2 -0.24 m/sec2
2.66 m/sec2 -0.30 m/sec2
2.49 m/sec2 -0.47 m/sec2
2.45 m/sec2 -0.51 m/sec2
2.35 m/sec2 -0.61 m/sec2
2.26 m/sec2 -0.70 m/sec2
2.24 m/sec2 -0.72 m/sec2
2.14 m/sec2 -0.82 m/sec2

The difference between best and worst was 27.7% (0.82 m/sec2).

Comfort

1

Noise

External noise in dB

Lower is better ↓
Noise
Position / TyreResultGap to best
66.5 dB Best
66.6 dB +0.10 dB
66.7 dB +0.20 dB
66.9 dB +0.40 dB
67 dB +0.50 dB
67.5 dB +1.00 dB
67.5 dB +1.00 dB
67.5 dB +1.00 dB
67.6 dB +1.10 dB
67.7 dB +1.20 dB
68.2 dB +1.70 dB
68.3 dB +1.80 dB
69 dB +2.50 dB

The difference between best and worst was 3.8% (2.5 dB).

Value

1

Rolling Resistance

Rolling resistance in kg t

Lower is better ↓
Rolling Resistance
Position / TyreResultGap to bestExtra fuel / year
7.05 kg/t Best £0
8.38 kg/t +1.33 kg/t £83
8.41 kg/t +1.36 kg/t £85
8.5 kg/t +1.45 kg/t £91
8.55 kg/t +1.50 kg/t £94
8.62 kg/t +1.57 kg/t £98
8.68 kg/t +1.63 kg/t £102
8.8 kg/t +1.75 kg/t £109
9.04 kg/t +1.99 kg/t £124
9.15 kg/t +2.10 kg/t £131
9.22 kg/t +2.17 kg/t £136
9.83 kg/t +2.78 kg/t £174
9.9 kg/t +2.85 kg/t £178

The difference between best and worst was 40.4% (2.85 kg / t). Over 19,000 km a year at £1.45/L, the Bridgestone Potenza Sport uses about 123 L (£178) more fuel than the Firestone Firehawk Sport.

Adjust the assumptions

Calculated estimates, not additional measurements. Use the controls to explore the assumptions. These calculators use the full test field, independently of your tyre selection above.

19,000 km
£1.45/L
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.

Test setup & methodology

The test setting, the conditions recorded and how the results contribute to the score.

Recorded test conditions

Recorded test conditions

Dry Braking
100 → 0 km/h
Wet Braking
100 → 0 km/h

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