Sunny NA603
EU tyre label for every size: 8 sizes of this summer tyre compared with the rest of the market
The Sunny NA603 is a summer tyre for passenger cars. Its supplier has registered it in the EU product database (EPREL) in 8 sizes (8 registrations including load and speed variants), for 18″ to 22″ rims.
Wet grip is rated B–C depending on size, fuel efficiency C and external rolling noise 71–72 dB.
The label depends on the size. Sorted by wet grip, then fuel efficiency, then noise, the best-labelled size on sale is 235/40 ZR18 (Wet grip B · Fuel efficiency C · 71 dB), the weakest 265/60 R18 (Wet grip C · Fuel efficiency C · 72 dB).
On the EU market since March 2017; the earliest production week registered is 23/2017.
How it compares in its sizes
We compared each size with all other summer tyres of the same size and class in EPREL (8 sizes had at least four rivals). A size scores when its label is at least as good as 75% of them.
Strongest point: fuel efficiency.
What the label means on the road (265/60R18)
Example: the 265/60R18 size, compared with the 507 other summer tyres registered in this size.
Wet braking from 80 km/h
≈41 m with wet grip class C, the most common class in this size.
Fuel efficiency
Class C, the most common class in this size: no difference to the typical tyre.
Rolling noise
72 dB against a median of 72 dB in this size.
Estimates from the class ranges in Regulation (EU) 2020/740. A label class is a range, so a real tyre can sit anywhere inside it. Every 3 dB doubles the sound energy.
All 8 sizes
The small figure under each class is the share of same-size, same-season tyres this size matches or beats (“–” when fewer than five tyres share the size).
| Size | Load / speed | Wet | Fuel | Noise | Snow / ice | Production from |
|---|---|---|---|---|---|---|
| 18″ rims | ||||||
| 235/40ZR18 | 95W XL | B84% | C90% | 71 dBB75% | — | 23/2017 |
| 255/40ZR18 | 99W XL | B81% | C91% | 72 dBB63% | — | 23/2017 |
| 255/50R18 | 106V XL | B83% | C83% | 72 dBB57% | — | 23/2017 |
| 255/55R18 | 109V XL | C45% | C78% | 72 dBB67% | — | 23/2017 |
| 265/35ZR18 | 97W XL | B86% | C96% | 72 dBB67% | — | 23/2017 |
| 265/60R18 | 114H XL | C67% | C81% | 72 dBB75% | — | 23/2017 |
| 275/35ZR18 | 95W | B83% | C98% | 71 dBB93% | — | 23/2017 |
| 22″ rims | ||||||
| 265/45R22 | 109V XL | B100% | C70% | 72 dBB90% | — | 23/2017 |
Best-labelled summer tyres in 265/60R18
Other tyres on sale in the same size, sorted by wet grip, then noise, then fuel efficiency.
All tyres in 265/60 R18, ranked by label →
- Falken Azenis FK520A A 69 dB
- Nokian Tyres Powerproof 2A B 69 dB
- Dunlop Blue Response TGA A 70 dB
- Bridgestone Turanza 6A B 70 dB
- Cooper SummerA B 70 dB
- Rauffan Avantar R7A C 70 dB
Questions
Is the Sunny NA603 a quiet tyre?
Its declared rolling noise ranges from 71 dB to 72 dB (median 72 dB). In 25% of the sizes we could compare, it is at least as quiet as three quarters of same-size rivals.
How good is the Sunny NA603 in the wet?
Its wet grip class is B–C. In 75% of compared sizes that is at least as good as three quarters of same-size rivals.
Is the Sunny NA603 suitable for snow?
No size carries the 3PMSF symbol, so it is not certified for severe snow. In countries with winter tyre rules it does not count as a winter tyre.
When was the Sunny NA603 launched?
It has been on the EU market since March 2017. The earliest production week in its registrations is 23/2017; the DOT code on the sidewall shows the week and year of your tyre.
More from Sunny
Source: EPREL, the European Commission’s product registry for energy labelling — 8 registrations, data as of 23 October 2026. Suppliers have updated 8 of these registrations since first publication. Label values are the supplier’s declaration.