Vehicle Overview
Key specifications and features at a glance
3 Series M340i xDrive
Overview
C-Class Mercedes-AMG C 43
2019 - Present
Year
2021 - Present
2998
Engine
1991
285
Power
310
Petrol
Fuel
Petrol
Automatic
Transmission
Automatic
5
Seating
5
Detailed Specifications
Complete technical specifications comparison
Best comparable values are highlighted in green.
3 Series M340i xDrive
Specification
C-Class Mercedes-AMG C 43
2998
Engine Capacity
1991
B58B30
Engine Code
M139l
Inline
Cylinder Configuration
Inline-four
6
Number of Cylinders
4
Turbocharged
Aspiration
Turbocharged
285
Power
310
500
Torque
500
250
Top Speed
250
AWD
Drive Type
AWD
10.4
Fuel Economy City
—
6.3
Fuel Economy Highway
—
8
Fuel Economy Combined
9.1
—
Emission Standard
Euro 6
225 / 40 R19 front;255 / 35 R19 rear
Tyre Size
245 / 40 R19 front; 265 / 35 R19 rear
19
Wheel Size
19
4
Number of Doors
4
5
Seating Capacity
5
Ventilated disc
Front Brakes
Ventilated disc
Ventilated disc
Rear Brakes
Ventilated disc
Double-joint spring strut
Front Suspension
Multi-link
Five-link
Rear Suspension
Multi-link
Electric rack and pinion
Steering Type
Electric power steering
8
Number of Airbags
9
1800
Towing Capacity
1800
12
Turning Circle
11.1
Dimensions & Weight
Physical specifications and measurements
Best comparable values are highlighted in green.
3 Series M340i xDrive
Dimension
C-Class Mercedes-AMG C 43
59
Fuel Tank Capacity
66
4713
Length
4751
1827
Width
1820
1440
Height
1437
2851
Wheelbase
2865
136
Ground Clearance
—
1745
Kerb Weight
1840
480
Boot Space
455
Features Comparison
Standard and optional equipment comparison
Safety
3 Series M340i xDrive
Feature
C-Class Mercedes-AMG C 43
Adaptive Cruise Control
Autonomous Emergency Braking
Lane Departure Warning
Lane Keep Assist
Blind Spot Monitoring
Rear Cross Traffic Alert
Traffic Sign Recognition
Driver Attention Monitor
Front Parking Sensors
Rear Parking Sensors
360 Camera
Reverse Camera
Hill Start Assist
Tyre Pressure Monitoring System
Rear Occupant Alert
Comfort
3 Series M340i xDrive
Feature
C-Class Mercedes-AMG C 43
Keyless Entry
NFC Keyless Entry
Push Button Start
Dual-Zone Climate Control
Tri-Zone Climate Control
Heated Front Seats
Ventilated Front Seats
Heated Steering Wheel
Power Tailgate
Remote Start
Power Driver Seat
Power Passenger Seat
Memory Seats
Auto Dimming Mirror
Rain Sensing Wipers
Adaptive Headlights
Interior Exterior
3 Series M340i xDrive
Feature
C-Class Mercedes-AMG C 43
Leather Seats
Fabric Seats
Ambient Lighting
Sunroof
Panoramic Roof
LED Headlights
Matrix LED Headlights
Daytime Running Lights
Alloy Wheels
Roof Rails
Rear Privacy Glass
Power Folding Mirrors
Technology
3 Series M340i xDrive
Feature
C-Class Mercedes-AMG C 43
Touchscreen Display
Digital Instrument Cluster
Apple CarPlay
Android Auto
Wireless Apple CarPlay
Wireless Android Auto
Wireless Phone Charging
Built-in Navigation
Premium Audio System
Head-Up Display
USB-C Ports
Bluetooth Connectivity
Voice Control
Connected Car App
Pros & Cons
Strengths and weaknesses of each vehicle
BMW 3 Series M340i xDrive
Pros
- +Powerful six-cylinder performance
- +Confident xDrive traction
- +Rapid all-weather acceleration
- +Practical 480-litre boot
- +Comfortable long-distance cruiser
Cons
- −Substantially higher price
- −Higher fuel consumption
- −Expensive performance tyres
- −Firm ride on 19-inch wheels
- −Costly insurance and servicing
Mercedes-Benz C-Class Mercedes-AMG C 43
Pros
- +Strong 310 kW performance
- +Confident all-wheel drive
- +Quick nine-speed transmission
- +Rear-wheel steering agility
- +Usable daily performance
Cons
- −Firm performance ride
- −High fuel consumption
- −Four-cylinder lacks classic AMG sound
- −Expensive tyres and brakes
- −High purchase price
Which one should you buy?
Best for Value: BMW 3 Series M340i xDrive
Boot space relative to list price contributes positively to the value score.
Our Recommendation
Choose BMW 3 Series M340i xDrive if: You prioritise performance and responsive power.
Choose Mercedes-Benz C-Class Mercedes-AMG C 43 if: You prioritise performance and responsive power.
Bottom Line: BMW 3 Series M340i xDrive leads on value.
Ready to Find Your Perfect Vehicle?
Browse thousands of listings or compare more vehicles to make the best decision