The Comparative Analysis :
BMW 123d 5-door (07 - 11) vs. BMW M135i Steptronic 5-door (12 - 15)
€ 32,900
€ 42,900
€ 32,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 42,900
ⓘ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 8.5 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
4324
4239 mm
Length
4324 mm
2660 mm
Wheelbase
2690 mm
Vehicle Weight
123d
M135i
1495 kg
Kerb Weight
1520 kg
1920 kg
Gross Vehicle
Weight
Weight
1975 kg
Weight Difference:
25 kg
1.64 %
General
123d
M135i
E87
Generation
F20
Hatchback
Car Body Style
Hatchback
Diesel
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed manual 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
148 mph
Maximum Speed
155 mph
7 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
97 m
0.000 sec
123d
62 mph
62
mph
mph
68 m
0.000 sec
M135i
▶ REPLAY
7.44 kg/bhp
Weight-to-Power Ratio
4.81 kg/bhp
123d
7.44 kg/bhp
4.81 kg/bhp
M135i
Fuel Economy / Emissions
123d
M135i
Fuel Economy
55 mpg
combined
38 mpg
123d
55 mpg
38 mpg
M135i
44 mpg
city
27 mpg
No data
motorway
No data
51 L
Fuel Tank Capacity
52 L
621 mi
Range
431 mi
123d
621 mi
431 mi
M135i
Environmental Impact
104.9 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).
142.1 kWh
123d
104.9 kWh
142.1 kWh
M135i
Euro 5
Emission Standard
Euro 5
135 g/km (NEFZ)
CO2 Emissions
175 g/km (NEFZ)
Practical Convenience
123d
M135i
5
Doors
5
5
No. of Seats
5
425 kg
Maximum Payload
455 kg
330 L
Boot Capacity
360 L








1150 L
Boot Capacity (Seats Down)
1200 L





















