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@ SEAT S.A. / SEAT Media Center
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Mercedes B Class vs SEAT Leon - Differences and prices compared

Compare performance (238 HP vs 272 HP), boot space and price (33100 £ vs 24500 £) at a glance. Find out which car is the better choice for you – Mercedes B Class or SEAT Leon?

Mercedes B Class

5 (4 Reviews)
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SEAT Leon

Here’s where it gets real: The technical differences in detail

B Class @ Mercedes-Benz Group Media

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

SEAT Leon has a evident advantage in terms of price – it starts at 24500 £, while the Mercedes B Class costs 33100 £. That’s a price difference of around 8675 £.

Fuel consumption also shows a difference: SEAT Leon manages with 1.20 L and is therefore convincingly more efficient than the Mercedes B Class with 2.50 L. The difference is about 1.30 L per 100 km.

As for range, the SEAT Leon performs distinct better – achieving up to 133 km, about 50 km more than the Mercedes B Class.

Leon @ SEAT S.A. / SEAT Media Center

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the SEAT Leon has a somewhat edge – offering 272 HP compared to 238 HP. That’s roughly 34 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes B Class is slightly quicker – completing the sprint in 6.50 s, while the SEAT Leon takes 7.70 s. That’s about 1.20 s faster.

In terms of top speed, the Mercedes B Class performs somewhat better – reaching 250 km/h, while the SEAT Leon tops out at 220 km/h. The difference is around 30 km/h.

There’s also a difference in torque: Mercedes B Class pulls somewhat stronger with 450 Nm compared to 360 Nm. That’s about 90 Nm difference.

B Class @ Mercedes-Benz Group Media

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: offers more seating capacity – vs .

In curb weight, SEAT Leon is hardly perceptible lighter – 1344 kg compared to 1405 kg. The difference is around 61 kg.

In terms of boot space, the Mercedes B Class offers to a small extent more room – 455 L compared to 380 L. That’s a difference of about 75 L.

In maximum load capacity, the Mercedes B Class performs to a small extent better – up to 1540 L, which is about 239 L more than the SEAT Leon.

When it comes to payload, Mercedes B Class barely noticeable takes the win – 550 kg compared to 521 kg. That’s a difference of about 29 kg.

Who wins the race?

The SEAT Leon proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
SEAT Leon is the better all-rounder in this comparison.

from about £24,500
Leon @ SEAT S.A. / SEAT Media Center

SEAT Leon

  • Engine Type : Petrol, Petrol MHEV, Diesel, Plugin Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 116 - 272 HP
  • Consumption L/100km : 1.2 - 5.5 L
  • Electric Range : 133 km
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Mercedes B Class
SEAT Leon

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes B Class

5 (4 Reviews)
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The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
18C0947_011 @ Mercedes-Benz Group Media
18C0947_009 @ Mercedes-Benz Group Media
18C0953_005 @ Mercedes-Benz Group Media
18C0953_035 @ Mercedes-Benz Group Media
18C0947_044 @ Mercedes-Benz Group Media

SEAT Leon

SEAT Leon pairs sharp, modern styling with a cabin that's sensible and slightly sporty, making it an appealing choice for buyers who want flair without fuss. It drives with eager composure and offers a neat balance of comfort and agility, so you get everyday usability with a wink of fun.

details
Small-33980-LeonSEDynamic-MysteryBlue @ SEAT S.A. / SEAT Media Center
Small-33989-LeonSEDynamic-MysteryBlue @ SEAT S.A. / SEAT Media Center
ipp-all-new-seat-leon-114-hq @ SEAT S.A. / SEAT Media Center
Small-35510-SEATLeonkeepsWhatCarAwardinthefamily @ SEAT S.A. / SEAT Media Center

Reviews Mercedes B Class

5 (4 Reviews)
rate

Reviews SEAT Leon

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Costs and Consumption
Price
33100 - 52500 £
Price
24500 - 36400 £
Consumption L/100km
2.5 - 6.9 L
Consumption L/100km
1.2 - 5.5 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
83 km
Electric Range
133 km
Battery Capacity
12.90 kWh
Battery Capacity
19.70 kWh
co2
56 - 156 g/km
co2
27 - 126 g/km
Fuel tank capacity
35 - 51 L
Fuel tank capacity
40 - 45 L

Dimensions and Body
Body Type
MPV
Body Type
Hatchback
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1405 - 1745 kg
Curb weight
1344 - 1657 kg
Trunk capacity
405 - 455 L
Trunk capacity
270 - 380 L
Length
4419 mm
Length
4368 mm
Width
1796 mm
Width
1799 mm
Height
1562 mm
Height
1442 - 1460 mm
Max trunk capacity
1440 - 1540 L
Max trunk capacity
1187 - 1301 L
Payload
505 - 550 kg
Payload
473 - 521 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 238 HP
Power HP
116 - 272 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
7.7 - 10.5 s
Max Speed
200 - 250 km/h
Max Speed
197 - 220 km/h
Torque
200 - 450 Nm
Torque
220 - 360 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
85 - 175 kW
Power kW
85 - 200 kW
Engine capacity
1332 - 1991 cm3
Engine capacity
1498 - 1968 cm3

General
Model Year
2024 - 2025
Model Year
2024 - 2025
CO2 Efficiency Class
B, D, E, F
CO2 Efficiency Class
D, B
Brand
Mercedes-Benz
Brand
SEAT

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What drivetrain options does the Mercedes B Class have?

The Mercedes B Class is offered with Front-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.