The Comparative Analysis :
BMW 123d Automatic (07 - 12) vs. BMW M135i xDrive Steptronic (12 - 15)
€ 34,200
€ 44,000
€ 34,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The 123d is 10.1 cm shorter, 1.7 cm narrower and 1 cm taller than the M135i.
123d
M135i
1421
1748
1934
1411
1765
1984
1748 mm
Width
1765 mm
1934 mm
Width Incl. Mirrors
1984 mm
1421 mm
Height
1411 mm
2660
4239
2690
4340
4239 mm
Length
4340 mm
2660 mm
Wheelbase
2690 mm
Vehicle Weight
123d
M135i
1485 kg
Kerb Weight
1590 kg
1910 kg
Gross Vehicle
Weight
Weight
2045 kg
Weight Difference:
105 kg
6.6 %
General
123d
M135i
E81
Generation
F21
Hatchback
Car Body Style
Hatchback
Diesel
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Permanent all-wheel drive

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
123d
M135i
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
Straight-six petrol engine with turbocharger
BMW
Engine Series
BMW
4
Valves
4
4
Cylinders
6
1995 CC
Engine Capacity
2979 CC
201 bhp
at 4400 rpm
Power
316 bhp
at 5800 rpm
123d
201 bhp
316 bhp
M135i
400 NM
at 2000 rpm
Max. Torque
450 NM
at 1300 rpm
123d
400 NM
450 NM
M135i
Performance
123d
M135i
147 mph
Maximum Speed
155 mph
7 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
97 m
0.000 sec
123d
62 mph
62
mph
mph
65 m
0.000 sec
M135i
▶ REPLAY
7.39 kg/bhp
Weight-to-Power Ratio
5.03 kg/bhp
123d
7.39 kg/bhp
5.03 kg/bhp
M135i
Fuel Economy / Emissions
123d
M135i
Fuel Economy
51 mpg
combined
36 mpg
123d
51 mpg
36 mpg
M135i
41 mpg
city
26 mpg
No data
motorway
No data
51 L
Fuel Tank Capacity
52 L
576 mi
Range
414 mi
123d
576 mi
414 mi
M135i
Environmental Impact
113.1 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
147.7 kWh
123d
113.1 kWh
147.7 kWh
M135i
Euro 5
Emission Standard
Euro 5
145 g/km (NEFZ)
CO2 Emissions
182 g/km (NEFZ)
Practical Convenience
123d
M135i
3
Doors
3
4
No. of Seats
4
425 kg
Maximum Payload
455 kg
330 L
Boot Capacity
360 L








1150 L
Boot Capacity (Seats Down)
1200 L










