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Mercedes GLA vs Cadillac OPTIQ comparison

Compare performance (421 HP vs 304 HP), boot space and price (38,800 £ vs 55,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLA or Cadillac OPTIQ?

Mercedes GLA vs Cadillac OPTIQ: Key differences

Mercedes GLA

4.5 (4 Reviews)
rate
  • clearly cheaper
  • markedly more power
  • significantly quicker 0–100 km/h
  • considerably lighter
details

Cadillac OPTIQ

3.7 (1 Reviews)
rate
  • substantially more electric range
  • barely more trunk space
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

GLA

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes GLA is clearly cheaper – starting at 38,800 £ , while the Cadillac OPTIQ costs 55,700 £ . That’s a price difference of around 16,878 £.

As for electric range, the Cadillac OPTIQ offers substantially more range – reaching up to 425 km, about 351 km more than the Mercedes GLA.

GLA

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 Mercedes GLA offers markedly more power – delivering 421 HP compared to 304 HP. That’s roughly 117 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLA is significantly quicker – completing the sprint in 4.3 s, while the Cadillac OPTIQ takes 6.3 s. That’s about 2 s quicker.

There’s also a difference in torque: the Mercedes GLA delivers only slightly more torque with 500 Nm compared to 480 Nm. That’s about 20 Nm more.

GLA

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 GLA is considerably lighter – 1,570 kg compared to 2,376 kg. The difference is around 806 kg.

Looking at boot space, the Cadillac OPTIQ offers barely more boot space – 443 L compared to 435 L. That’s a difference of about 8 L.

When it comes to payload, the Cadillac OPTIQ carries marginally more – 524 kg compared to 500 kg. That’s a difference of about 24 kg.

Who wins the race in the data check?

The Mercedes GLA has only a minor advantage 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 £38,800
GLA

Mercedes GLA

  • Engine Type Petrol MHEV, Plug-in Hybrid, Diesel, Petrol
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 421 HP
  • Consumption L/100km 2.9 - 9.5 L/100km
  • Electric Range 74 km
details

Frequently compared as well

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Mercedes GLA
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Cadillac OPTIQ

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLA

The Mercedes GLA is a compact luxury crossover that brings Mercedes-Benz's refined design and premium cabin materials into a practical, city-friendly package. It combines comfortable ride quality and intuitive tech with poised handling, making it a confident choice for everyday driving and longer journeys.

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20C0047_067
20C0047_071
20C0047_104
20C0047_115

Reviews Mercedes GLA

4.5 (4 Reviews)
rate
Lucien
1 May 2026, 07:12:24

GLA 180 petrol. Ideal for city and highway. Very smooth and quiet. The automatic gearbox is a delight. Average consumption 6.2 L/100 km. Special edition 180 Cyber Edition, leather seats....

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Gutter
24 Feb 2026, 21:53:27

Super nimble, very impressive power from this 1,300cc mild‑hybrid engine — in town, on the road and on the motorway for this 2025 GLA 180 Style AMG... premium interior!

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Serge
16 Jan 2026, 16:09:11

You have to compare like with like — the GLA should be compared to the Q3, not the Q2 as in your study!

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Cadillac OPTIQ

The Cadillac Optiq is a chic, compact electric SUV that brings the brand’s bold styling, hushed refinement, and confident punch to a more attainable size. With a calm, composed ride, a tech-rich cabin, and the brand’s signature light show outside, it feels like an urban-friendly gateway to true American luxury without losing the drama or the practicality buyers need.

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Reviews Cadillac OPTIQ

3.7 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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Mercedes GLA
Cadillac OPTIQ

Costs and Consumption
Price
38,800 - 75,300 £
Price
55,700 £
Consumption L/100km
2.9 - 9.5 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 kWh/100km
Electric Range
74 km
Electric Range
425 km
Battery Capacity
-
Battery Capacity
-
co2
66 - 216 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,570 - 1,810 kg
Curb weight
2,376 kg
Trunk capacity
385 - 435 L
Trunk capacity
443 L
Length
-
Length
-
Width
1,834 - 1,849 mm
Width
1,912 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 500 kg
Payload
524 kg

Engine and Performance
Engine Type
Petrol MHEV, Plug-in Hybrid, Diesel, Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
116 - 421 HP
Power HP
304 HP
Acceleration 0-100km/h
4.3 - 11 s
Acceleration 0-100km/h
6.3 s
Max Speed
-
Max Speed
-
Torque
230 - 500 Nm
Torque
480 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 310 kW
Power kW
224 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
E, F, B, G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Cadillac
Is the Mercedes GLA offered with different drivetrains?

The Mercedes GLA is available as Front-Wheel Drive or All-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.