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Mercedes S-Class vs Cadillac Lyriq comparison

Compare performance (635 HP vs 646 HP), boot space and price (104,000 £ vs 71,100 £ ) at a glance. Find out which car is the better choice for you – Mercedes S-Class or Cadillac Lyriq?

Mercedes S-Class vs Cadillac Lyriq: Key differences

Mercedes S-Class

  • markedly lighter
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Cadillac Lyriq

  • substantially cheaper
  • very slightly more power
  • significantly more electric range
  • moderately quicker 0–100 km/h
  • marginally more trunk space
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Here’s where it gets real: The technical differences in detail

S-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.

Cadillac Lyriq is substantially cheaper – starting at 71,100 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 32,877 £.

As for electric range, the Cadillac Lyriq offers significantly more range – reaching up to 530 km, about 412 km more than the Mercedes S-Class.

Lyriq

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Cadillac Lyriq offers very slightly more power – delivering 646 HP compared to 635 HP. That’s roughly 11 HP more horsepower.

When accelerating from 0 to 100 km/h, the Cadillac Lyriq is moderately quicker – completing the sprint in 3.6 s, while the Mercedes S-Class takes 4 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the Cadillac Lyriq delivers only slightly more torque with 880 Nm compared to 850 Nm. That’s about 30 Nm more.

S-Class

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.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes S-Class is markedly lighter – 2,165 kg compared to 2,774 kg. The difference is around 609 kg.

Looking at boot space, the Cadillac Lyriq offers marginally more boot space – 588 L compared to 530 L. That’s a difference of about 58 L.

When it comes to payload, the Mercedes S-Class carries clearly more – 660 kg compared to 426 kg. That’s a difference of about 234 kg.

Who wins the race in the data check?

The Cadillac Lyriq 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 £71,100
Lyriq

Cadillac Lyriq

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 528 - 646 HP
  • Consumption kWh/100km 21.8 - 22.5 kWh/100km
  • Electric Range 471 - 530 km
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Mercedes S-Class
Cadillac Lyriq

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes S-Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

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Reviews Mercedes S-Class

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Cadillac Lyriq

The Cadillac Lyriq arrives with bold, angular styling and a striking light signature that gives it real presence on the road without trying too hard. Inside, the Lyriq serves up a calm, tech-heavy cabin with premium touches and a relaxed driving experience that makes switching to electric feel less like a sacrifice and more like a quiet flex.

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Reviews Cadillac Lyriq

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Mercedes S-Class
Cadillac Lyriq

Costs and Consumption
Price
104,000 - 201,400 £
Price
71,100 - 93,300 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
21.8 - 22.5 kWh/100km
Electric Range
98 - 118 km
Electric Range
471 - 530 km
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,165 - 2,650 kg
Curb weight
2,774 kg
Trunk capacity
345 - 530 L
Trunk capacity
588 L
Length
-
Length
-
Width
1,921 mm
Width
1,977 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
426 kg

Engine and Performance
Engine Type
Petrol MHEV, Plug-in Hybrid, Diesel MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
528 - 646 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
3.6 - 5.3 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
610 - 880 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
247 - 467 kW
Power kW
388 - 475 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
-

General
Model Year
2026
Model Year
2,024 - 2,025
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Cadillac
Is the Mercedes S-Class offered with different drivetrains?

The Mercedes S-Class is offered with All-Wheel Drive or Rear-Wheel Drive.

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.