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Mercedes SL Class vs SEAT Leon SP Sportstourer comparison

Compare performance (816 HP vs 272 HP), boot space and price (112,700 £ vs 26,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or SEAT Leon SP Sportstourer?

Mercedes SL Class vs SEAT Leon SP Sportstourer: Key differences

Mercedes SL Class

  • clearly more power
  • substantially quicker 0–100 km/h
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SEAT Leon SP Sportstourer

  • clearly cheaper
  • substantially more efficient
  • considerably more electric range
  • visibly lighter
  • clearly more trunk space
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By Achim Sedelmaier

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

SL Class

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

SEAT Leon SP Sportstourer is clearly cheaper – starting at 26,200 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 86,484 £.

Fuel consumption also shows a difference: the SEAT Leon SP Sportstourer uses 1.3 L/100km and is substantially more efficient than the Mercedes SL Class with 9 L/100km. The difference is about 7.7 L/100km.

As for electric range, the SEAT Leon SP Sportstourer offers considerably more range – reaching up to 131 km, about 119 km more than the Mercedes SL Class.

Leon SP Sportstourer

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes SL Class offers clearly more power – delivering 816 HP compared to 272 HP. That’s roughly 544 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is substantially quicker – completing the sprint in 2.9 s, while the SEAT Leon SP Sportstourer takes 7.9 s. That’s about 5 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers substantially more torque with 1,420 Nm compared to 360 Nm. That’s about 1,060 Nm more.

SL Class

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: SEAT Leon SP Sportstourer offers more seats – 5 vs 4.

In terms of curb weight, SEAT Leon SP Sportstourer is visibly lighter – 1,384 kg compared to 1,810 kg. The difference is around 426 kg.

Looking at boot space, the SEAT Leon SP Sportstourer offers clearly more boot space – 620 L compared to 240 L. That’s a difference of about 380 L.

When it comes to payload, the SEAT Leon SP Sportstourer carries visibly more – 569 kg compared to 375 kg. That’s a difference of about 194 kg.

Who wins the race in the data check?

The SEAT Leon SP Sportstourer stands well ahead of its rival in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £26,200
Leon SP Sportstourer

SEAT Leon SP Sportstourer

  • Engine Type Petrol, Petrol MHEV, Plugin Hybrid, Diesel
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 115 - 272 HP
  • Consumption L/100km 1.3 - 5.6 L/100km
  • Electric Range 131 km
Mercedes SL Class
SEAT Leon SP Sportstourer

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Mercedes SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

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SEAT Leon SP Sportstourer

The SEAT Leon Sportstourer blends sporty hatchback looks with estate practicality, giving buyers a sleek wagon that doesn't look like it's trying too hard to be sensible. Its cabin feels modern and well thought‑out, with clever storage and a driving character that keeps the journey entertaining — a smart choice for families who don't want to surrender style for space.

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Mercedes SL Class
SEAT Leon SP Sportstourer

Costs and Consumption

Price
112,700 - 219,300 £
Price
26,200 - 38,300 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
1.3 - 5.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
12 km
Electric Range
131 km
Battery Capacity
-
Battery Capacity
-
co2
206 - 309 g/km
co2
28 - 128 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Roadster
Body Type
Estate
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,810 - 2,195 kg
Curb weight
1,384 - 1,708 kg
Trunk capacity
110 - 240 L
Trunk capacity
470 - 620 L
Length
-
Length
-
Width
1,915 mm
Width
1,799 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
422 - 569 kg

Engine and Performance

Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol, Petrol MHEV, Plugin Hybrid, Diesel
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
435 - 816 HP
Power HP
115 - 272 HP
Acceleration 0-100km/h
2.9 - 4.7 s
Acceleration 0-100km/h
7.9 - 10.8 s
Max Speed
-
Max Speed
-
Torque
500 - 1,420 Nm
Torque
220 - 360 Nm
Number of Cylinders
4 - 8
Number of Cylinders
3 - 4
Power kW
320 - 600 kW
Power kW
85 - 200 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
1,498 - 1,968 cm3

General

Model Year
2025
Model Year
2,024 - 2,026
CO2 Efficiency Class
G
CO2 Efficiency Class
D, B
Brand
Mercedes-Benz
Brand
SEAT
DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.