Auto Motor Und Sport always pushes traditional tyre testing in new directions, and this years summer tyre test has a new twist - sustainability. The test focused on the 215/55 R17 size, suitable for midsize sedans, station wagons, and compact SUVs, with particular attention paid to tyres achieving at least a "B" rating for rolling resistance on the EU tyre label.
The Sustainability Challenge
The test went beyond traditional performance metrics to evaluate sustainability through in three categories: manufacturing processes, logistics, and fuel efficiency. The testers awarded extra points for innovative sustainable production methods and use of recycled or renewable materials. They also factored in the carbon footprint of transportation by measuring the distance between production facilities and the German market. Most significantly, they heavily weighted the real-world impact of rolling resistance on fuel consumption.
To practice what they preached, the testers even used synthetic e-fuels and HVO diesel during the evaluation process to minimize the test's own carbon footprint.
Sustainability Champions
The sustainability scoring revealed clear differences in manufacturers' approaches to eco-friendly tyre production:
Michelin emerged as the sustainability leader with the e.Primacy, which is produced carbon-neutrally in Germany. The tyre achieved a perfect score in manufacturing innovation (10 points), logistics (0 km, as it's produced locally), and most impressively, demonstrated zero additional fuel consumption compared to the test benchmark.
Continental took a different path to sustainability with its UltraContact NXT. While it scored slightly lower overall than Michelin, it led the field in manufacturing innovations, earning a perfect 10 points for its comprehensive use of sustainable materials. The tyre incorporates natural rubber, bio-based silica derived from rice husk ash, recycled PET bottles, and reclaimed steel. This material-focused approach represents a significant advancement in reducing the tyre's environmental footprint from production. Its slightly higher 1.0% fuel consumption increase and 2400 km logistics distance were the only factors preventing it from matching Michelin's overall sustainability score.
Falken's e.Ziex also performed admirably in the sustainability metrics, particularly with its 29% content of sustainable and recycled materials. Although manufactured in Turkey, creating a longer logistics chain for the test in Germany, it maintained excellent fuel efficiency with just a 1.3% increase in consumption compared to the benchmark.
Goodyear and Bridgestone both approached sustainability primarily through longevity and efficiency rather than revolutionary material changes. Both brands scored well for relatively short transportation distances but couldn't match the leaders in overall environmental impact.
The Insa Turbo EcoEvolution, despite being a retreaded tyre that theoretically should excel in sustainability through material reuse, surprisingly performed poorly. While it earned top marks for manufacturing due to the inherent sustainability of retreading, its dramatically higher rolling resistance resulted in an 11.4% increase in fuel consumption—negating much of its environmental advantage.
Dry
Dry braking remains a critical safety test, with the Falken e.Ziex delivering the best stopping performance at 35.2 meters from 100 km/h. Interestingly, this shows that sustainability doesn't necessarily compromise dry braking, as the Falken combines good environmental credentials with class-leading dry braking. The retreaded Insa Turbo struggled significantly here, requiring an additional 6.4 meters (18%) more distance to stop.
Dry Braking
Dry braking in meters
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 97 % | |
| 96 % | |
| 95 % | |
| 93 % | |
| 85 % |
The difference between best and worst was 15%.
In the dry handling test, which measures average lap speeds around a challenging course, the Falken e.Ziex again took top honors with 107.4 km/h, closely followed by the Continental. This test demonstrates that eco-friendly compounds can still deliver the responsiveness and grip needed for confident handling, though the high-efficiency Michelin ranked fifth, suggesting some compromises in ultimate handling performance.
Dry Handling
Dry Handling Average Speed
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 100 % | |
| 99 % | |
| 99 % | |
| 99 % | |
| 97 % |
All the tyres in the Dry Handling test finished less than 3% apart.
Wet
Continental's UltraContact NXT demonstrated its wet weather prowess by delivering the shortest wet braking distance at 31.5 meters from 80 km/h. Wet performance is often where eco-focused tyres sacrifice grip to achieve lower rolling resistance, yet Continental managed to balance both priorities effectively. The alarming 42.6-meter stopping distance of the Insa Turbo represents a dangerous compromise in wet safety.
Wet Braking
Wet braking in meters
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 100 % | |
| 98 % | |
| 96 % | |
| 90 % | |
| 74 % |
The difference between best and worst was 26%.
Bridgestone and Goodyear tied for first place in wet handling with identical 78.9 km/h lap speeds. The Michelin e.Primacy, despite leading in sustainability metrics, fell behind here, suggesting its focus on rolling resistance may have required some concessions in wet performance.
Wet Handling
Wet Handling Average Speed
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 100 % | |
| 100 % | |
| 99 % | |
| 97 % | |
| 88 % |
The difference between best and worst was 12%.
The Bridgestone was best in both aquaplaning tests.
Straight Aqua
Float Speed in Km/H
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 96 % | |
| 94 % | |
| 94 % | |
| 94 % | |
| 86 % |
The difference between best and worst was 14%.
Curved Aquaplaning
Remaining lateral acceleration
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 97 % | |
| 95 % | |
| 94 % | |
| 88 % | |
| 77 % |
The difference between best and worst was 23%.
Comfort
Michelin's e.Primacy delivered the quietest performance at 70.5 dB
Noise
External noise in dB
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 99 % | |
| 98 % | |
| 98 % | |
| 97 % | |
| 96 % |
The difference between best and worst was 4%.
Value
The Michelin e.Primacy demonstrated its efficiency focus with a class-leading rolling resistance measurement of just 5.7 kg/t. This test directly impacts fuel consumption and vehicle range, especially for electric vehicles, making it perhaps the most relevant sustainability metric. The stark contrast with the Insa Turbo (10.4 kg/t) explains why the retreaded tyre's theoretical environmental advantage was undermined by its poor real-world efficiency.
Rolling Resistance
Rolling resistance in kg t
relative index, 100 = best in test ↑| Position / Tyre | Result |
|---|---|
| 100 % | |
| 93 % | |
| 92 % | |
| 84 % | |
| 83 % | |
| 55 % |
The difference between best and worst was 45%.
Results
The Continental UltraContact NXT emerged as the most well-rounded product, blending sustainability with excellent safety features. For value-conscious buyers, the Falken e.Ziex offers comparable performance with minimal environmental compromise at a lower price point.
Continental UltraContact NXT
215/55 R17 98W XLCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 2nd / 6 | 96.97% |
| Dry Handling | 2nd / 6 | 99.72% |
| Wet Braking | 1st / 6 | 100% |
| Wet Handling | 4th / 6 | 99.37% |
| Wet Circle | 2nd / 6 | 98.38% |
| Straight Aqua | 3rd / 6 | 94.37% |
| Curved Aquaplaning | 3rd / 6 | 94.56% |
| Noise | 2nd / 6 | 99.3% |
| Rolling Resistance | 2nd / 6 | 93.44% |
- EU Label
- A/A/69
- Price
- 180.00
Falken e.Ziex
215/55 R17 98V XLCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 1st / 6 | 100% |
| Dry Handling | 1st / 6 | 100% |
| Wet Braking | 2nd / 6 | 99.68% |
| Wet Handling | 3rd / 6 | 99.62% |
| Wet Circle | 3rd / 6 | 98.03% |
| Straight Aqua | 5th / 6 | 94.25% |
| Curved Aquaplaning | 5th / 6 | 88.1% |
| Noise | 4th / 6 | 98.05% |
| Rolling Resistance | 3rd / 6 | 91.94% |
- EU Label
- A/A/71
- Price
- 125.00
Bridgestone Turanza 6
215/55 R17 98W XLCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 3rd / 6 | 95.91% |
| Dry Handling | 3rd / 6 | 99.44% |
| Wet Braking | 4th / 6 | 96.33% |
| Wet Handling | 1st / 6 | 100% |
| Wet Circle | 4th / 6 | 97.91% |
| Straight Aqua | 1st / 6 | 100% |
| Curved Aquaplaning | 1st / 6 | 100% |
| Noise | 5th / 6 | 97.11% |
| Rolling Resistance | 4th / 6 | 83.82% |
- EU Label
- B/A/70
- Price
- 154.00
Michelin e.Primacy
215/55 R17 98W XLCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 5th / 6 | 93.12% |
| Dry Handling | 5th / 6 | 98.79% |
| Wet Braking | 5th / 6 | 90% |
| Wet Handling | 5th / 6 | 96.7% |
| Wet Circle | 5th / 6 | 97.22% |
| Straight Aqua | 3rd / 6 | 94.37% |
| Curved Aquaplaning | 4th / 6 | 94.22% |
| Noise | 1st / 6 | 100% |
| Rolling Resistance | 1st / 6 | 100% |
- EU Label
- A/B/70
- Price
- 178.00
Goodyear EfficientGrip Performance 2
215/55 R17 98W XLCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 4th / 6 | 95.14% |
| Dry Handling | 4th / 6 | 99.16% |
| Wet Braking | 3rd / 6 | 98.44% |
| Wet Handling | 1st / 6 | 100% |
| Wet Circle | 1st / 6 | 100% |
| Straight Aqua | 2nd / 6 | 95.52% |
| Curved Aquaplaning | 2nd / 6 | 96.6% |
| Noise | 3rd / 6 | 98.19% |
| Rolling Resistance | 5th / 6 | 82.61% |
- EU Label
- B/A/70
- Price
- 147.00
Insa Turbo EcoEvolution
215/55 R17 94VCategory scores (% of best)
All discipline results (9)
Discipline positions compare the ranked tyres in this test, not the whole market. These are individual measurements, not weighted overall scores.
| Test | Position in discipline | % |
|---|---|---|
| Dry Braking | 6th / 6 | 84.62% |
| Dry Handling | 6th / 6 | 97.39% |
| Wet Braking | 6th / 6 | 73.94% |
| Wet Handling | 6th / 6 | 88.21% |
| Wet Circle | 6th / 6 | 81% |
| Straight Aqua | 6th / 6 | 86.32% |
| Curved Aquaplaning | 6th / 6 | 76.87% |
| Noise | 6th / 6 | 95.66% |
| Rolling Resistance | 6th / 6 | 54.81% |
- Price
- 77.00



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