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Test Charts / Auto Zeitung

2026 Auto Zeitung 18 Inch Summer Tire Test

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

Tested size
235/45 R18
Tires tested
10
Disciplines
14
Test vehicle
Audi A5 TFSI

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 tires can be separated by very different margins.

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

Dry

3

Dry Braking

Dry braking in feet (62 - 0 mph)

Lower is better ↓
Dry Braking
Position / TireResultGap to bestResidual speed
108 ft Best 0 mph
108 ft 0 ft 6 mph
109 ft +1 ft 9 mph
112 ft +4 ft 16 mph
113 ft +5 ft 17 mph
114 ft +6 ft 19 mph
115 ft +7 ft 20 mph
116 ft +8 ft 21 mph
116 ft +8 ft 21 mph
117 ft +9 ft 23 mph

The difference between best and worst was 8.8% (9 ft ≈ 0.6 Car Lengths). From 80 mph, the Westlake ZuperAce Z 007 would still be travelling at 23 mph when the Continental PremiumContact 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 time in seconds

Lower is better ↓
Dry Handling
Position / TireResultGap to best
61.4 s Best
61.7 s +0.30 s
61.7 s +0.30 s
61.8 s +0.40 s
61.8 s +0.40 s
62.4 s +1.00 s
62.5 s +1.10 s
62.5 s +1.10 s
62.7 s +1.30 s
62.7 s +1.30 s

All the tires in the Dry Handling test finished less than 3% apart.

Subj. Dry Handling

Subjective Dry Handling Score

Higher is better ↑
Subj. Dry Handling
Position / TireResultGap to best
30 Points Best
28 Points -2.00 Points
27 Points -3.00 Points
25 Points -5.00 Points
24 Points -6.00 Points
22 Points -8.00 Points
21 Points -9.00 Points
18 Points -12.00 Points
16 Points -14.00 Points
16 Points -14.00 Points

The difference between best and worst was 46.7% (14 Points).

Wet

5

Wet Braking

Wet braking in feet (62 - 0 mph)

Lower is better ↓
Wet Braking
Position / TireResultGap to bestResidual speed
175 ft Best 0 mph
184 ft +9 ft 18 mph
185 ft +10 ft 19 mph
185 ft +10 ft 19 mph
196 ft +21 ft 26 mph
200 ft +25 ft 28 mph
203 ft +28 ft 30 mph
207 ft +32 ft 32 mph
211 ft +36 ft 33 mph
214 ft +39 ft 34 mph

The difference between best and worst was 22.7% (39 ft ≈ 2.7 Car Lengths). From 80 mph, the Laufenn S Fit EQ+ would still be travelling at 34 mph when the Continental PremiumContact 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 time in seconds

Lower is better ↓
Wet Handling
Position / TireResultGap to best
69.8 s Best
70.8 s +1.00 s
70.9 s +1.10 s
72.2 s +2.40 s
72.3 s +2.50 s
72.4 s +2.60 s
74 s +4.20 s
74.2 s +4.40 s
74.5 s +4.70 s
76.1 s +6.30 s

The difference between best and worst was 9% (6.3 s).

Subj. Wet Handling

Subjective Wet Handling Score

Higher is better ↑
Subj. Wet Handling
Position / TireResultGap to best
44 Points Best
41 Points -3.00 Points
39 Points -5.00 Points
35 Points -9.00 Points
31 Points -13.00 Points
27 Points -17.00 Points
23 Points -21.00 Points
20 Points -24.00 Points
16 Points -28.00 Points
12 Points -32.00 Points

The difference between best and worst was 72.7% (32 Points).

Wet Circle

Wet Circle Lap Time in seconds

Lower is better ↓
Wet Circle
Position / TireResultGap to best
13.7 s Best
13.9 s +0.20 s
14.1 s +0.40 s
14.1 s +0.40 s
14.6 s +0.90 s
14.8 s +1.10 s
14.9 s +1.20 s
15.1 s +1.40 s
15.2 s +1.50 s
15.3 s +1.60 s

The difference between best and worst was 11.7% (1.6 s).

Straight Aqua

Float Speed in mph

Higher is better ↑
Straight Aqua
Position / TireResultGap to best
51.4 mph Best
51.3 mph -0.1 mph
51.1 mph -0.3 mph
50.7 mph -0.7 mph
50.2 mph -1.2 mph
50.1 mph -1.3 mph
50.0 mph -1.4 mph
49.5 mph -1.9 mph
49.4 mph -2.0 mph
48.8 mph -2.6 mph

The difference between best and worst was 5.1% (2.6 mph).

Comfort

2

Subj. Comfort

Subjective Comfort Score

Higher is better ↑
Subj. Comfort
Position / TireResultGap to best
10 Points Best
9 Points -1.00 Points
8 Points -2.00 Points
7 Points -3.00 Points
6 Points -4.00 Points
6 Points -4.00 Points
5 Points -5.00 Points
5 Points -5.00 Points
5 Points -5.00 Points
4 Points -6.00 Points

The difference between best and worst was 60% (6 Points).

Noise

External noise in dB

Lower is better ↓
Noise
Position / TireResultGap to best
68 dB Best
68 dB Best
69 dB +1.00 dB
69 dB +1.00 dB
69 dB +1.00 dB
69 dB +1.00 dB
70 dB +2.00 dB
70 dB +2.00 dB
71 dB +3.00 dB
72 dB +4.00 dB

The difference between best and worst was 5.9% (4 dB).

Value

4

Wear

Predicted tread life in KM

Higher is better ↑
Wear
Position / TireResultGap to best
31,069 miles Best
30,758 miles -311 miles
27,806 miles -3,263 miles
27,496 miles -3,573 miles
24,855 miles -6,214 miles
24,389 miles -6,680 miles
22,525 miles -8,544 miles
18,020 miles -13,049 miles
17,864 miles -13,205 miles
15,690 miles -15,379 miles

The difference between best and worst was 49.5% (15,379 miles).

Value

Euros/1000km based on cost/wear

Lower is better ↓
Value
Position / TireResultGap to bestcost per 1,000 miles
11.68 Price/1000 Best €32.01
12.69 Price/1000 +1.01 Price/1000 €29.15
14.13 Price/1000 +2.45 Price/1000 €28.05
14.14 Price/1000 +2.46 Price/1000 €33.16
15.3 Price/1000 +3.62 Price/1000 €26.88
15.65 Price/1000 +3.97 Price/1000 €35.98
16.09 Price/1000 +4.41 Price/1000 €34.03
16.31 Price/1000 +4.63 Price/1000 €30.36
16.84 Price/1000 +5.16 Price/1000 €37.14
17.76 Price/1000 +6.08 Price/1000 €36.21

The difference between best and worst was 52.1% (6.08 Price/1000). Over 25,000 miles the cheapest tire to own (Michelin Primacy 5) works out €257 cheaper than the most expensive (Continental PremiumContact 7).

How this is calculated

Assumes a typical car doing 29 mpg (rolling resistance causing 20% of fuel use), fuel at €6.25 per gallon and €70 fitting per set of four. Purchase prices are from the time of the 2026 test; financing costs are excluded.

Rolling Resistance

Rolling resistance in kg t

Lower is better ↓
Rolling Resistance
Position / TireResultGap to bestExtra fuel / year
6.8 kg/t Best $0
7 kg/t +0.20 kg/t $9
7.2 kg/t +0.40 kg/t $17
7.4 kg/t +0.60 kg/t $26
7.7 kg/t +0.90 kg/t $39
7.7 kg/t +0.90 kg/t $39
7.9 kg/t +1.10 kg/t $48
8 kg/t +1.20 kg/t $52
8.1 kg/t +1.30 kg/t $56
8.2 kg/t +1.40 kg/t $61

The difference between best and worst was 20.6% (1.4 kg / t). Over 12,000 miles a year at $3.60/gal, the Tercelo Sport D1 uses about 17 gal ($61) more fuel than the Michelin Primacy 5.

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 tire selection above.

12,000 mi
$3.60/gal
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.

Abrasion

Millimeter of tread lost per 1000km driven

Lower is better ↓
Abrasion
Position / TireResultGap to best
0.08 mm/1000km Best
0.08 mm/1000km Best
0.08 mm/1000km Best
0.08 mm/1000km Best
0.09 mm/1000km +0.01 mm/1000km
0.11 mm/1000km +0.03 mm/1000km
0.11 mm/1000km +0.03 mm/1000km
0.11 mm/1000km +0.03 mm/1000km
0.15 mm/1000km +0.07 mm/1000km
0.16 mm/1000km +0.08 mm/1000km

The difference between best and worst was 100% (0.08 mm/1000km).

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
62.1 → 0.0 mph
Wet Braking
62.1 → 0.0 mph

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