Most Fuel-Efficient Hatchbacks
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The best-mpg hatchbacks from 2020 onwards in our database, one entry per model, ranked on EPA combined fuel economy converted to UK mpg. All figures come from our own dataset (US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026) — no opinions, just the numbers, ranked.
Whichever you pick, sort the running gear first — UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero .
Overall Top 10
Hatchbacks ranked by combined UK mpg on their most efficient configuration.
| # | Model | Model years | MPG (UK) | MPG (US) | CO₂ g/km | Engine |
|---|---|---|---|---|---|---|
| 1 | Toyota Prius Hybrid | 2023–2024 | 68 | 57 | 96 | 2L 4-cyl |
| 2 | Hyundai Ioniq Hybrid | 2020–2022 | 66 | 55 | 101 | 1.6L 4-cyl |
| 3 | Toyota Prius Prime Plug-in Hybrid | 2020–2022 | 65 | 54 | 48 | 1.8L 4-cyl |
| 4 | Honda Civic 5Dr Hybrid | 2025–2026 | 58 | 48 | 116 | 2L 4-cyl |
| 5 | Lexus UX Hybrid | 2025–2026 | 52 | 43 | 127 | 2L 4-cyl |
| 6 | Mitsubishi Mirage | 2021, 2023 | 47 | 39 | 140 | 1.2L 3-cyl |
| 7 | Honda Civic | 2022–2024 | 43 | 36 | 151 | 1.5L 4-cyl turbo |
| 8 | Hyundai Accent | 2020–2022 | 43 | 36 | 154 | 1.6L 4-cyl |
| 9 | Kia Rio | 2020–2023 | 43 | 36 | 155 | 1.6L 4-cyl |
| 10 | Mazda 2 | 2020–2021 | 42 | 35 | 157 | 1.5L 4-cyl |
One entry per model line — the best model year for each, from 36 distinct model lines considered (2020 onwards).
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Toyota Prius Hybrid · 2023–2024
Around 68 mpg (UK) / 57 mpg (US) combined from its 2L 4-cyl hybrid powertrain.
Hatchback · Front-Wheel Drive · 96 g/km CO₂ · NHTSA 5★ · EPA est. $1,200/yr fuel
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Hyundai Ioniq Hybrid · 2020–2022
Around 66 mpg (UK) / 55 mpg (US) combined from its 1.6L 4-cyl hybrid powertrain.
Hatchback · Front-Wheel Drive · 101 g/km CO₂ · NHTSA 5★ · EPA est. $1,200/yr fuel
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Toyota Prius Prime Plug-in Hybrid · 2020–2022
Around 65 mpg (UK) / 54 mpg (US) combined from its 1.8L 4-cyl plug-in hybrid powertrain.
Hatchback · Front-Wheel Drive · 48 g/km CO₂ · NHTSA 5★ · EPA est. $1,250/yr fuel
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Honda Civic 5Dr Hybrid · 2025–2026
Around 58 mpg (UK) / 48 mpg (US) combined from its 2L 4-cyl hybrid powertrain.
Hatchback · Front-Wheel Drive · 116 g/km CO₂ · EPA est. $1,400/yr fuel
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Lexus UX Hybrid · 2025–2026
Around 52 mpg (UK) / 43 mpg (US) combined from its 2L 4-cyl hybrid powertrain.
Hatchback · Front-Wheel Drive · 127 g/km CO₂ · NHTSA 5★ · EPA est. $1,550/yr fuel
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Mitsubishi Mirage · 2021, 2023
Around 47 mpg (UK) / 39 mpg (US) combined from its 1.2L 3-cyl regular gasoline engine.
Hatchback · Front-Wheel Drive · 140 g/km CO₂ · NHTSA 4★ · EPA est. $1,700/yr fuel
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Honda Civic · 2022–2024
Around 43 mpg (UK) / 36 mpg (US) combined from its 1.5L 4-cyl turbo regular gasoline engine.
Hatchback · Front-Wheel Drive · 151 g/km CO₂ · NHTSA 5★ · EPA est. $1,850/yr fuel
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Hyundai Accent · 2020–2022
Around 43 mpg (UK) / 36 mpg (US) combined from its 1.6L 4-cyl regular gasoline engine.
Hatchback · Front-Wheel Drive · 154 g/km CO₂ · NHTSA 4★ · EPA est. $1,850/yr fuel
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Kia Rio · 2020–2023
Around 43 mpg (UK) / 36 mpg (US) combined from its 1.6L 4-cyl regular gasoline engine.
Hatchback · Front-Wheel Drive · 155 g/km CO₂ · EPA est. $1,850/yr fuel
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Mazda 2 · 2020–2021
Around 42 mpg (UK) / 35 mpg (US) combined from its 1.5L 4-cyl regular gasoline engine.
Hatchback · Front-Wheel Drive · 157 g/km CO₂ · NHTSA 5★ · EPA est. $1,900/yr fuel
Frequently Asked Questions
What is the most fuel-efficient option on this list?
The Toyota Prius (hybrid) — around 68 mpg (UK) / 57 mpg (US) combined, among 36 model lines we rank.
Why are hatchbacks popular for economy?
They are compact, light and usually fitted with small, efficient engines, and the rear hatch makes them practical for their size.
Rankings are computed from the specification data on this site and are provided for reference only. Verify details with the manufacturer before purchasing.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026