In-depth reviews

SEAT Leon hatchback - MPG, running costs & CO2

SEAT Leon owners have more choice than ever, including plug-in hybrid

One way in which the Leon has become more sophisticated is the wider range of powertrains now available. Along with petrol and diesel, there's the option of 48-volt mild-hybrid hardware, and SEAT is also bringing plug-in hybrid technology to the Leon range for the first time.

This will make it all the more important for drivers to choose the best engine to suit their needs: petrol for short, urban trips, with mild-hybrid assistance fitted if it's within budget. Diesel will work best for drivers with a higher annual mileage who spend lots of time on the motorway, while plug-in hybrid suits owners who can charge the battery pack at home and make the most of its electric range.

SEAT Leon MPG & CO2

The mid-range 1.5-litre TSI petrol with 128bhp will return between 45.6 and 51.4mpg, dropping to 44.1-48.7mpg for the 148bhp model. The smaller 1.0-litre petrol should top 50mpg in real-world driving, with a maximum official figure of 52.3mpg. Meanwhile, the 2.0-litre diesel engines should be expected to return over 60mpg.

The 1.0-litre and 1.5-litre petrol are available with 48-volt mild-hybrid technology, but only in combination with a DSG automatic gearbox. This will harvest energy under deceleration and store it in a small battery, ready to power the car during engine-off coasting and provide a small boost under acceleration.

The mild-hybrid assisted petrol engines shouldn’t be confused with the plug-in hybrid, which uses a 1.4-litre TSI petrol engine, a potent electric motor and a much larger 13kWh battery pack. According to SEAT, the e-HYBRID is capable of 217.3-235.4mpg and CO2 emissions as low as 27g/km. Charging it at home or via a public charge point should provide an electric driving range of up to 38 miles. Using a 3.6kW AC source, a full charge from 0% takes less than 3.5 hours. All this technology makes the plug-in hybrid one of the more expensive Leon models to buy, but company-car drivers will face reduced Benefit-in-Kind bills thanks to it’s low CO2 emissions.

Insurance groups

Insurance groups are yet to be revealed, but we expect them to span from around 10 to 30, with smaller engines and lower trim levels sitting much closer to the bottom of this scale.

Warranty

SEAT typically offers a three-year/60,000-mile warranty with its cars, which matches Volkswagen and Ford, but falls short of quite a few rivals. For instance, the Toyota Corolla and Hyundai i30 both come with a five-year/100,000-mile warranty, and the Kia Ceed gets seven years of cover.

Servicing

SEAT servicing can be paid for monthly to help spread the costs of maintenance, and usually buyers are offered different servicing packages depending on their annual mileage and driving habits.

Most Popular

Best new car deals 2021
i20
Deals
9 Apr 2021

Best new car deals 2021

UK road tax rules for 2021 explained
2021 Road Tax explained
Tips and advice
8 Apr 2021

UK road tax rules for 2021 explained

New 2021 Porsche Macan nearing production
2021 Porsche Macan SUV front 3/4 static
Porsche Macan
7 Apr 2021

New 2021 Porsche Macan nearing production

Tips & advice

View All
Car dashboard warning lights: the complete guide
Tips and advice
28 Dec 2020

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Tips and advice
10 Nov 2020

Electric car charging stations: a complete guide

PCP vs HP – what's the difference?
Tips and Advice
23 Mar 2020

PCP vs HP – what's the difference?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
24 Feb 2021

Average speed cameras: how do they work?

Best cars

View All
Best car interiors
Best cars
10 Mar 2020

Best car interiors

Best electric cars
Best cars
24 Dec 2020

Best electric cars

Best cheap-to-run cars
Toyota Prius front 3/4 cornering
Best cars
1 Feb 2021

Best cheap-to-run cars

The UK's top 10 fastest hot hatchbacks
Hot hatches
9 Apr 2020

The UK's top 10 fastest hot hatchbacks