Kumho Ecsta PS91 vs Pirelli P Zero PZ4: the full picture
This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the Kumho Ecsta PS91 and Pirelli P Zero PZ4 appear in 37 tests, 5 of which put both tires on the same track on the same day. Head-to-head results carry the most weight here, because surface, weather and test car all change between events and make raw numbers from different tests hard to compare directly.
How the Kumho Ecsta PS91 performs. It takes the win in efficiency. Its overall Tire Lab Score is 86/100, based on 6 tests.
How the Pirelli P Zero PZ4 performs. It takes the win in wet, dry, mileage. Its overall Tire Lab Score is 84/100, based on 31 tests.
What this means for you. Category wins matter more than the overall score when your driving is weighted toward one condition — a wet-climate commuter should follow the wet braking column, while a high-mileage driver should follow wear and rolling resistance. Also check that both tires are actually offered in your size and load rating: performance can shift between sizes, and availability differs between the European and North American markets.
Verdict
The Kumho Ecsta PS91 is the stronger all-round choice, leading in efficiency and Tire Lab Score. The Pirelli P Zero PZ4 still wins on wet, making it the right pick if that matters most to you.
Which one should you buy?
Choose Kumho Ecsta PS91 if
- You prioritise efficiency
- You prioritise wet
- You prioritise dry
- You prioritise mileage
Test profile
| Metric | Kumho Ecsta PS91 | Pirelli P Zero PZ4 |
|---|---|---|
| Segment | UHP | UHP |
| Type | Summer | Summer |
| Tests used | 6 | 31 |
| Best rank | #1 | #1 |
| Avg rank | 5.8 | 5.6 |
| Latest test | 2023 | 2025 |
| Tire Lab Score | 85.5 | 83.7 |
Tire Lab Score
Kumho Ecsta PS91
Pirelli P Zero PZ4
Performance overview
Category-by-category results
| Category | Kumho Ecsta PS91 | Pirelli P Zero PZ4 | Winner |
|---|---|---|---|
| 💧Wet | Avg rank 5.8 21 | Avg rank 5.4 101310 | Pirelli P Zero PZ4 |
| ☀️Dry | Avg rank 6.2 2 | Avg rank 4.3 10712 | Pirelli P Zero PZ4 |
| 🔇Noise / Comfort | Avg rank 5.6 111 | Avg rank 5.6 146 | Tie |
| 📏Mileage | No data | Avg rank 11.8 1 | Pirelli P Zero PZ4 |
| 🔋Efficiency | Avg rank 2.7 11 | Avg rank 3.6 722 | Kumho Ecsta PS91 |
Tests used in this comparison
Both tires were measured head-to-head in these 5 independent tests:
💧 Wet: Kumho Ecsta PS91 vs Pirelli P Zero PZ4
The Pirelli P Zero PZ4 wins this category with an average rank of 5.4, compared to 5.8 for the Kumho Ecsta PS91.
☀️ Dry: Kumho Ecsta PS91 vs Pirelli P Zero PZ4
The Pirelli P Zero PZ4 wins this category with an average rank of 4.3, compared to 6.2 for the Kumho Ecsta PS91.
🔇 Noise / Comfort: Kumho Ecsta PS91 vs Pirelli P Zero PZ4
Both tires perform similarly in noise / comfort, with average ranks of 5.6 and 5.6.
📏 Mileage: Kumho Ecsta PS91 vs Pirelli P Zero PZ4
The Pirelli P Zero PZ4 wins this category with an average rank of 11.8, compared to no data for the Kumho Ecsta PS91.
🔋 Efficiency: Kumho Ecsta PS91 vs Pirelli P Zero PZ4
The Kumho Ecsta PS91 wins this category with an average rank of 2.7, compared to 3.6 for the Pirelli P Zero PZ4.
Frequently asked questions
Which is better in the wet, Kumho Ecsta PS91 or Pirelli P Zero PZ4?
Across independent wet-braking tests, the Pirelli P Zero PZ4 ranks higher on average than the Kumho Ecsta PS91.
Which has shorter dry braking distance?
The Pirelli P Zero PZ4 averages a better dry-braking rank than the Kumho Ecsta PS91 across the tests where both appeared.
Which tire lasts longer?
Based on wear and abrasion testing, the Pirelli P Zero PZ4 shows better mileage performance than the Kumho Ecsta PS91.
How many tests were used in this comparison?
Kumho Ecsta PS91 appears in 6 independent tests, Pirelli P Zero PZ4 in 31, with 5 head-to-head tests where both were measured.
Also compare
Kumho Ecsta PS91 vs…
Pirelli P Zero PZ4 vs…
Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →