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Mercedes B Class vs Aston Martin DB12 comparison

Compare performance (238 HP vs 680 HP), boot space and price (33,100 £ vs 192,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Aston Martin DB12?

Mercedes B Class vs Aston Martin DB12: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • clearly cheaper
  • considerably more efficient
  • visibly lighter
  • clearly more trunk space
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Aston Martin DB12

  • significantly more power
  • considerably quicker 0–100 km/h
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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.

By Achim Sedelmaier

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

B Class

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.

Mercedes B Class is clearly cheaper – starting at 33,100 £ , while the Aston Martin DB12 costs 192,900 £ . That’s a price difference of around 159,728 £.

Fuel consumption also shows a difference: the Mercedes B Class uses 5.1 L/100km and is considerably more efficient than the Aston Martin DB12 with 12.2 L/100km. The difference is about 7.1 L/100km.

DB12

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 Aston Martin DB12 offers significantly more power – delivering 680 HP compared to 238 HP. That’s roughly 442 HP more horsepower.

When accelerating from 0 to 100 km/h, the Aston Martin DB12 is considerably quicker – completing the sprint in 3.6 s, while the Mercedes B Class takes 6.5 s. That’s about 2.9 s quicker.

There’s also a difference in torque: the Aston Martin DB12 delivers significantly more torque with 800 Nm compared to 400 Nm. That’s about 400 Nm more.

B Class

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mercedes B Class offers more seats – 5 vs 4.

In terms of curb weight, Mercedes B Class is visibly lighter – 1,405 kg compared to 1,788 kg. The difference is around 383 kg.

Looking at boot space, the Mercedes B Class offers clearly more boot space – 455 L compared to 262 L. That’s a difference of about 193 L.

Who wins the race in the data check?

The Mercedes B Class is far ahead overall 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 £33,100
B Class

Mercedes B Class

  • Engine Type Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 238 HP
  • Consumption L/100km 5.1 - 6.9 L/100km
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Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
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Mercedes A Class
Mercedes B Class
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Mercedes B Class
Aston Martin DB12

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes B Class

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.

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18C0947_011
18C0947_009
18C0953_005
18C0953_035
18C0947_044

Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

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

Aston Martin DB12

The Aston Martin DB12 is a gorgeously styled grand tourer that fuses beguiling elegance with a fiercely driver-focused personality while wrapping occupants in luxury. If you want a car that turns heads on the street and makes long journeys feel like an event, the DB12 provides effortless poise and an intoxicating soundtrack—perfect for buyers who prefer their drama tailored rather than shouty.

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30DFE222-7D95-4E2C-B4DC-9A36A06B543E
5DFC6864-5472-491E-8583-E50CDC8B55F3

Reviews Aston Martin DB12

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

Frequently compared as well

Aston Martin DB12
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BMW 2 Series Active Tourer
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Aston Martin DB12

Costs and Consumption
Price
33,100 - 52,500 £
Price
192,900 - 209,600 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
12.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
276 - 278 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
Coupe, Convertible
Seats
5
Seats
4
Doors
-
Doors
-
Curb weight
1,405 - 1,565 kg
Curb weight
1,788 - 1,898 kg
Trunk capacity
445 - 455 L
Trunk capacity
206 - 262 L
Length
-
Length
-
Width
1,796 mm
Width
1,980 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
-

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
116 - 238 HP
Power HP
680 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
3.6 - 3.7 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
800 Nm
Number of Cylinders
4
Number of Cylinders
8
Power kW
85 - 175 kW
Power kW
500 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
3,982 cm3

General
Model Year
2025
Model Year
2,023 - 2,024
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Aston Martin
What drivetrain options does the Mercedes B Class have?

Available configurations include 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.