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Test source Auto Bild Sportscars

2018 Auto Bild 20 inch UHP Tyre Test

Overall test winnerMichelin Pilot Sport 4 S

2018 is setting up to be an excellent year for tyre testing, with the epic German publication Auto Bild already delivering three excellent tests.

Tyres tested
8
Tested size
245/30 R20
Disciplines
7

At a glance

Tyre shortlist

8 Tyres tested

Published finishing positions, with the strengths and considerations from this test. Owner reviews cover other sizes and driving conditions.

1st

Michelin Pilot Sport 4 S

+Test winner with a very balance result. Excellent handling in the wet and dry, precise steering with good feedback, short wet and dry braking distances.

−Average comfort, high price.

Read full verdict
2nd

Goodyear Eagle F1 Asymmetric 2

+Sporty handling with stable cornering and a good steering response, short wet and dry braking, good levels of comfort.

−Average dry handling.

Read full verdict
3rd

Hankook Ventus S1 evo

+Short braking distances in any weather, good steering response and car balance, good price / performance ratio.

−Average aquaplaning.

Read full verdict
4th

Vredestein Ultrac Vorti R

+Excellent dry performance, sporty handling with good steering response. Quiet.

−Average aquaplaning.

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5th

Continental Sport Contact 6

+Good handling and balance in the wet or dry, very quiet.

−Average comfort, high rolling resistance.

Read full verdict
6th

Bridgestone Potenza S001

+Good steering and performance in the dry.

−Poor wet handling with slow steering and long wet braking distances.

Read full verdict
7th

Kumho Ecsta PS71

+Good aquaplaning result, short dry braking, cheap to buy.

−Poor wet handling with slow steering and long wet braking distances.

Read full verdict
8th

Nankang Noble Sport NS20

+Quiet, low price.

−Poor wet handling, long wet braking, spongy handling.

Read full verdict

Tyre shortlist

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2018 Auto Bild 20 inch UHP Tyre Test · 245/30 R20

Explore the complete results →

The full test

The evidence behind the verdict

2018 is setting up to be an excellent year for tyre testing, with the epic German publication Auto Bild already delivering three excellent tests. Of the three, this 20" tyre test is perhaps the most interesting of the trio.

For this investigation, Auto Bild have bought eight 245/30 R20 tyre patterns and placed them through the usual array of wet and dry tests using a Mercedes E Class.

While the internet favourite Michelin Pilot Sport 4S takes its traditional top spot, there is a strange result for the Continental Sport Contact 6, a great result for the ten year old Goodyear Eagle F1 Asymmetric 2 (not 3!), and Bridgestone make a return to tests with the old Potenza S001.

Read on for the full results!

Dry

In the dry the Michelin and Vredestein duke it out for the top spot. The Vredestein Ultrac Vorti R often proves to be an excellent dry weather tyre, with good grip and excellent feedback, and it proves that again here, fastest over dry handling and second best during dry braking. The Michelin has a 0.7 metre lead in dry braking, which is comparatively large when you consider only a metre covers the next four places.

The Nankang finishes last in both tests, a huge four metres behind the Michelin during dry braking, which when braking down from 62 mph would be the difference between stopping, and a 25 mph crash!

Dry Braking

Dry braking in meters

Lower is better ↓
Dry Braking
Position / TyreResultGap to best
35.9 m Best
36.6 m +0.70 m
36.8 m +0.90 m
36.9 m +1.00 m
37.6 m +1.70 m
38 m +2.10 m
38.7 m +2.80 m
39.9 m +4.00 m

The difference between best and worst was 11.1% (4 m ≈ 0.9 Car Lengths).

Dry Handling

Dry Handling Average Speed

Higher is better ↑
Dry Handling
Position / TyreResultGap to best
89.6 km/h Best
89.2 km/h -0.40 km/h
89.2 km/h -0.40 km/h
88.5 km/h -1.10 km/h
87.7 km/h -1.90 km/h
87.5 km/h -2.10 km/h
85.5 km/h -4.10 km/h
85.2 km/h -4.40 km/h

The difference between best and worst was 4.9% (4.4 Km/H).

Wet

The wet testing shows the strength of the Michelins all round ability, with the Pilot Sport 4 S winning both the wet braking and wet handling tests. Its dry weather rival, the Vorti R manages a strong wet lap, but slips in the wet braking testes to fifth. The Nankang again finishes both tests last.

Wet Braking

Wet braking in meters

Lower is better ↓
Wet Braking
Position / TyreResultGap to best
45.2 m Best
46.7 m +1.50 m
47.3 m +2.10 m
48.6 m +3.40 m
49.5 m +4.30 m
51.4 m +6.20 m
51.7 m +6.50 m
56.4 m +11.20 m

The difference between best and worst was 24.8% (11.2 m ≈ 2.5 Car Lengths).

Wet Handling

Wet Handling Average Speed

Higher is better ↑
Wet Handling
Position / TyreResultGap to best
75.3 km/h Best
74.7 km/h -0.60 km/h
74.4 km/h -0.90 km/h
74.3 km/h -1.00 km/h
73.8 km/h -1.50 km/h
71.1 km/h -4.20 km/h
69.5 km/h -5.80 km/h
66.6 km/h -8.70 km/h

The difference between best and worst was 11.6% (8.7 Km/H).

Aquaplaning testing as very different test, with the Nankang winning the test by a considerable margin, the Michelin only managing third place and the Vredestein finishing second to last.

Straight Aqua

Float Speed in Km/H

Higher is better ↑
Straight Aqua
Position / TyreResultGap to best
75.5 km/h Best
73.2 km/h -2.30 km/h
70.3 km/h -5.20 km/h
70.3 km/h -5.20 km/h
69.7 km/h -5.80 km/h
69 km/h -6.50 km/h
68.3 km/h -7.20 km/h
67.8 km/h -7.70 km/h

The difference between best and worst was 10.2% (7.7 Km/H).

 

Environmental

The Continental proved to be the quietest tyre on test, but it also used the most fuel. The Michelin Pilot Sport 4 S was the nosiest.

Rolling Resistance

Rolling resistance in kg t

Lower is better ↓
Rolling Resistance
Position / TyreResultGap to bestExtra fuel / year
9.38 kg/t Best £0
9.58 kg/t +0.20 kg/t £9
9.61 kg/t +0.23 kg/t £11
9.79 kg/t +0.41 kg/t £19
9.83 kg/t +0.45 kg/t £21
9.88 kg/t +0.50 kg/t £23
10.13 kg/t +0.75 kg/t £35
10.64 kg/t +1.26 kg/t £59

The difference between best and worst was 13.4% (1.26 kg / t). Over 19,000 km a year at £1.45/L, the Continental Sport Contact 6 uses about 41 L (£59) more fuel than the Kumho Ecsta PS71.

Adjust the assumptions

Calculated estimates, not additional measurements. Use the controls to explore the assumptions.

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.

Noise

External noise in dB

Lower is better ↓
Noise
Position / TyreResultGap to best
73.3 dB Best
73.4 dB +0.10 dB
73.6 dB +0.30 dB
73.8 dB +0.50 dB
74.2 dB +0.90 dB
74.2 dB +0.90 dB
74.2 dB +0.90 dB
74.5 dB +1.20 dB

All the tyres in the Noise test finished less than 3% apart.

Results

Full details below, and as always check out the Auto Bild website for all the glorious details (in German)

1st

Michelin Pilot Sport 4 S

245/30 R20
Michelin Pilot Sport 4 S
All discipline results (5)
TestResult
Dry8
Wet8
Comfort5
Rolling Resistance6
Noise5

Total: 32

2nd

Goodyear Eagle F1 Asymmetric 2

245/30 R20
Goodyear Eagle F1 Asymmetric 2
All discipline results (5)
TestResult
Dry7
Wet7
Comfort7
Rolling Resistance6
Noise6

Total: 33

3rd

Hankook Ventus S1 evo

245/30 R20
Hankook Ventus S1 evo
All discipline results (5)
TestResult
Dry7
Wet6
Comfort5
Rolling Resistance6
Noise6

Total: 30

4th

Vredestein Ultrac Vorti R

245/30 R20
Vredestein Ultrac Vorti R
All discipline results (5)
TestResult
Dry8
Wet6
Comfort5
Rolling Resistance6
Noise7

Total: 32

5th

Continental Sport Contact 6

245/30 R20
Continental Sport Contact 6
All discipline results (5)
TestResult
Dry7
Wet6
Comfort5
Rolling Resistance4
Noise7

Total: 29

6th

Bridgestone Potenza S001

245/30 R20
Bridgestone Potenza S001
All discipline results (5)
TestResult
Dry5
Wet4
Comfort6
Rolling Resistance5
Noise6

Total: 26

7th

Kumho Ecsta PS71

245/30 R20
Kumho Ecsta PS71
All discipline results (5)
TestResult
Dry5
Wet3
Comfort4
Rolling Resistance7
Noise6

Total: 25

8th

Nankang Noble Sport NS20

245/30 R20
Nankang Noble Sport NS20
All discipline results (5)
TestResult
Dry4
Wet1
Comfort4
Rolling Resistance6
Noise7

Total: 22

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Where these tyres were tested again, and how the verdict held up.

Discussion

4 comments
  1. Bapt Space archived

    Hankook K107 or K117 ? :)

    #3347
    1. TyreReviews Bapt Space archived

      Edited - Balls, it was the Evo 2, I'll update the site now! Thank you :)

      #3348
      1. Erich TyreReviews archived

        Nope, the 20 inch hankook was the k107. The k117 was the 19inch tyre.

        #3357
        1. TyreReviews Erich archived

          I'm travelling a lot at the moment and missing a lot of sleep. I checked the wrong test to confirm. I'll edit it back :)

          #3358
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