CarComparison home

Compare cars on reliability and running costs, and check any car by its reg

Honda Civic vs SEAT Leon

Figures updated

The Honda Civic and SEAT Leon are two of the UK's most popular family hatchbacks. We compare the Mk11 e:HEV (2022–) Civic and the Mk4 (2020–) Leon on price, size, boot space, performance, safety and running costs, plus how reliable each has been across 437,406 real MOT tests.

Change cars or mileage

The short answer

Pick the Honda Civic for the bigger boot, or the SEAT Leon for the lower price, the better MOT record and lower fuel costs.

FigureHonda CivicMk11 e:HEV (2022–), 5-door hatchbackSEAT LeonMk4 (2020–), 5-door hatchback
Price and practicality
Price newUK list prices, across the range£34,325 to £39,295October 2026 price list£25,995 to £40,165July 2026 price list (best)
Body5-door hatchback5-door hatchback
Seats55
BootSeats up / folded410 litres (best)380 litres
Length4,560mm4,368mm
WidthWithout mirrors1,802mm1,800mm
Height1,408mm1,456mm
Performance
Power184 PS115–204 PS (best)
0–62mph7.8–8.1 sec7.7–10.4 sec
Safety
Euro NCAP ratingTests get tougher each year★★★★★ (2022)★★★★★ (2025)
Economy and emissions
Fuel typesHybrid, PetrolDiesel, Petrol, Plug-in hybrid
Official economyVersions of this generation33.2–60.1 mpg47.9–65.7 mpg
CO2108–193 g/km28–134 g/km
Running costs at 7,500 miles a year
Petrol or hybrid171.8p a litre, today's UK average£1,285 (45.6 mpg)£1,162 (50.4 mpg) (best)
Diesel198.4p a litre–£1,102 (61.4 mpg)
Cheapest version to fuelWhichever fuel costs least£1,285 (petrol)£1,102 (diesel)
Car tax a yearCars registered from April 2017£200£200£640 in years 2–6 for versions listed over £40,000
Reliability from real MOT tests
Reliability score106Above average116Well above average (best)
Failed MOT first time (ages 3–20)32.4%23.6% (best)
Failed at 3 years old8.8% (best)12.3%
Failed at 5 years old14.4% (best)18.3%
Failed at 10 years old24.3%24.3%
Most common MOT faultPosition lamp (5.3% of tests)Coil spring (2.8% of tests)
Fails more than average onNothing stands outNothing stands out
MOT tests analysed255,672181,734
About the cars
TypeFamily hatchbackFamily hatchback
Owners' average miles a year7,6009,400
On sale2022 on2020 on

Green marks the better figure where the difference is more than 3%. Reliability figures cover every version of each model tested in the year. Running costs use the typical official economy of recent versions (WLTP where available); real-world economy is usually a little worse for every car.

More comparisons

Frequently asked questions

›Is the Honda Civic or the SEAT Leon more reliable?

The SEAT Leon. Like for like on age and mileage, the Honda Civic fails its MOT about 9% more often (reliability scores 116 and 106, where 100 is average). 23.6% of SEAT Leons and 32.4% of Honda Civics failed first time in 2024.

›Which is bigger, the Honda Civic or the SEAT Leon?

The Honda Civic is 192mm longer (4,560mm against 4,368mm). The Honda Civic has the bigger boot: 410 litres against 380.

›Which is cheaper to buy, the Honda Civic or the SEAT Leon?

The SEAT Leon: new prices start at £25,995, £8,330 less than the Honda Civic (from £34,325). These are manufacturer list prices; dealers and brokers often sell for less.

›Which is cheaper to run, the Honda Civic or the SEAT Leon?

Comparing petrol versions, the SEAT Leon costs about £123 a year less to fuel at 7,500 miles (£1,162 against £1,285), using typical official economy and current UK average fuel prices.

›Which is safer, the Honda Civic or the SEAT Leon?

Euro NCAP gave the Honda Civic 5 stars (2022) and the SEAT Leon 5 stars (2025). Euro NCAP makes its tests tougher every few years, so ratings from different years aren't directly comparable.

›Should I buy the Honda Civic or the SEAT Leon?

Pick the Honda Civic for the bigger boot, or the SEAT Leon for the lower price, the better MOT record and lower fuel costs. The comparison above sets out price, space, performance, safety, running costs and reliability side by side.

Sources: manufacturers' UK specifications and price lists and Euro NCAP (listed on each model's page); DVSA anonymised MOT tests 2024 (Open Government Licence v3.0); Vehicle Certification Agency car fuel data, © Crown copyright, VCA cannot accept liability for its accuracy; fuel prices from the GOV.UK Fuel Finder scheme. Photos from Wikimedia Commons, credited under each picture.