Petrol cars ranked by official combined fuel consumption (lower is better), from the EU type-approval record. 23 verified models — the most economical version of each. Plug-in hybrids are excluded so every figure is a like-for-like combustion number. Every figure is cited.
| # | Model | Combined | mpg (UK) |
|---|---|---|---|
| 1 | Toyota AurisAuris II (E180) | 3.9 L/100 km | 72 |
| 2 | Toyota AygoAygo II (AB40) | 4.1 L/100 km | 69 |
| 3 | Suzuki BalenoBaleno (WB, 2nd gen) | 4.2 L/100 km | 67 |
| 4 | Suzuki CelerioCelerio (LF, 1st gen) | 4.3 L/100 km | 66 |
| 5 | Hyundai KonaKona II (SX2) | 4.5 L/100 km | 63 |
| 6 | Suzuki IgnisIgnis (MF, 1st gen) | 4.6 L/100 km | 61 |
| 7 | Volkswagen PoloPolo VI (AW) | 4.6 L/100 km | 61 |
| 8 | Hyundai i10i10 II (IA) | 4.7 L/100 km | 60 |
| 9 | Nissan NoteNote (E12, 2nd gen) | 4.7 L/100 km | 60 |
| 10 | Mazda 22 (DJ) | 4.9 L/100 km | 58 |
| 11 | Kia CeedCee'd (JD) | 4.9 L/100 km | 58 |
| 12 | Suzuki S-CrossS-Cross (JY, 1st gen) | 5.0 L/100 km | 56 |
| 13 | Nissan MicraMicra (K13) | 5.0 L/100 km | 56 |
| 14 | Suzuki SwiftSwift (NZ) | 5.0 L/100 km | 56 |
| 15 | Nissan PulsarPulsar (C13) | 5.1 L/100 km | 55 |
| 16 | Mercedes-Benz A-ClassA-Class (W177, 4th gen) | 5.3 L/100 km | 53 |
| 17 | Hyundai i20i20 III (BC3) | 5.4 L/100 km | 52 |
| 18 | Kia StonicStonic (YB) | 6.1 L/100 km | 46 |
| 19 | Lexus RXRX (AL10) | 6.3 L/100 km | 45 |
| 20 | Fiat 500500 (312) | 6.3 L/100 km | 45 |
| 21 | Audi A1A1 (GB) | 6.4 L/100 km | 44 |
| 22 | BMW 3 Series3 Series (E90) | 7.4 L/100 km | 38 |
| 23 | Lexus ISIS II (XE20) | 9.8 L/100 km | 29 |
Ranked by the manufacturer’s official combined fuel consumption(lowest L/100 km of each model’s range), from the EU type-approval record. Plug-in hybrids are excluded— their lab figures assume grid charging and aren’t comparable to a combustion car; self-charging hybrids are kept. Figures are the EU combined cycle (WLTP where available); real-world economy varies with driving. UK mpg is converted from L/100 km. The sample is our verified catalogue, not every car on sale.