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SEAT Leon vs Toyota Corolla

Figures updated

The SEAT Leon and Toyota Corolla are two of the UK's most popular family hatchbacks. We compare the Mk4 (2020–) Leon and the Mk12 (2019–) Corolla on price, size, boot space, performance, safety and running costs, plus how reliable each has been across 242,509 real MOT tests.

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The short answer

Pick the SEAT Leon for the lower price, or the Toyota Corolla for lower fuel costs.

FigureSEAT LeonMk4 (2020–), 5-door hatchbackToyota CorollaMk12 (2019–), 5-door hatchback
Price and practicality
Price newUK list prices, across the range£25,995 to £40,165July 2026 price list (best)£30,845 to £37,345September 2026 price list
Body5-door hatchback5-door hatchback
Seats55
BootSeats up / folded380 litres (best)361 litres
Length4,368mm4,370mm
WidthWithout mirrors1,800mm1,790mm
Height1,456mm1,460mm
Performance
Power115–204 PS (best)140–178 PS
0–62mph7.7–10.4 sec7.4–9.1 sec (best)
Safety
Euro NCAP ratingTests get tougher each year★★★★★ (2025)★★★★★ (2019)
Economy and emissions
Fuel typesDiesel, Petrol, Plug-in hybridHybrid
Official economyVersions of this generation47.9–65.7 mpg57.6–64.2 mpg
CO228–134 g/km100–110 g/km
Running costs at 7,500 miles a year
Petrol or hybrid171.8p a litre, today's UK average£1,162 (50.4 mpg)£975 (60.1 mpg) (best)
Diesel198.4p a litre£1,102 (61.4 mpg)–
Cheapest version to fuelWhichever fuel costs least£1,102 (diesel)£975 (petrol)
Car tax a yearCars registered from April 2017£200£640 in years 2–6 for versions listed over £40,000£200
Reliability from real MOT tests
Reliability score116Well above average (best)112Above average
Failed MOT first time (ages 3–20)23.6% (best)32.2%
Failed at 3 years old12.3%9.2% (best)
Failed at 5 years old18.3%11.7% (best)
Failed at 10 years old24.3%–
Most common MOT faultCoil spring (2.8% of tests)Position lamp (4.7% of tests)
Fails more than average onNothing stands outNothing stands out
MOT tests analysed181,73460,775
About the cars
TypeFamily hatchbackFamily hatchback
Owners' average miles a year9,4008,300
On sale2020 on2019 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.

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Frequently asked questions

›Is the SEAT Leon or the Toyota Corolla more reliable?

There's little in it. Once age and mileage are taken into account, both fail their MOT about as often as each other (reliability scores 116 and 112, where 100 is average).

›Which is bigger, the SEAT Leon or the Toyota Corolla?

They're almost the same length (4,368mm and 4,370mm). Their boots are much the same: 380 and 361 litres.

›Which is cheaper to buy, the SEAT Leon or the Toyota Corolla?

The SEAT Leon: new prices start at £25,995, £4,850 less than the Toyota Corolla (from £30,845). These are manufacturer list prices; dealers and brokers often sell for less.

›Which is cheaper to run, the SEAT Leon or the Toyota Corolla?

Comparing petrol versions, the Toyota Corolla costs about £187 a year less to fuel at 7,500 miles (£975 against £1,162), using typical official economy and current UK average fuel prices.

›Which is safer, the SEAT Leon or the Toyota Corolla?

Euro NCAP gave the SEAT Leon 5 stars (2025) and the Toyota Corolla 5 stars (2019). Euro NCAP makes its tests tougher every few years, so ratings from different years aren't directly comparable.

›Should I buy the SEAT Leon or the Toyota Corolla?

Pick the SEAT Leon for the lower price, or the Toyota Corolla for 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.