The Comparative Analysis :
BMW 123d (07 - 12) vs. Opel Astra 1.4 ECOTEC CNG (18 - 19)
€ 32,100

€ 25,300

€ 32,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 25,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 123d is considerably smaller in every dimension. It's 13.1 cm shorter, 6.1 cm narrower and 6.4 cm lower than the Opel Astra 1.4 ECOTEC CNG.
BMW 123d
Opel Astra 1.4 ECOTEC CNG
1421
1748
1934
1485
1809
2042
1748 mm
Width
1809 mm
1934 mm
Width Incl. Mirrors
2042 mm
1421 mm
Height
1485 mm
2660
4239
2662
4370
4239 mm
Length
4370 mm
2660 mm
Wheelbase
2662 mm
Vehicle Weight
BMW 123d
Opel Astra 1.4 ECOTEC CNG
1485 kg
Kerb Weight
1364 kg
1910 kg
Gross Vehicle
Weight
Weight
1890 kg

Weight Difference:
121 kg
8.15 %

General
BMW 123d
Opel Astra 1.4 ECOTEC CNG
E81
Generation
B-K
Hatchback
Car Body Style
Hatchback
Diesel
Fuel Type
Natural Gas (CNG)

Rear-wheel drive
Drive
Front-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
BMW 123d
Opel Astra 1.4 ECOTEC CNG
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
Straight-four engine (naturally aspirated engine)
BMW
Engine Series
4
Valves
4
4
Cylinders
4
1995 CC
Engine Capacity
1399 CC
201 bhp
at 4400 rpm
Power
108 bhp
at 5600 rpm
BMW 123d
201 bhp
108 bhp
Opel Astra 1.4 ECOTEC CNG
400 NM
at 2000 rpm
Max. Torque
200 NM
at 2000 rpm
BMW 123d
400 NM
200 NM
Opel Astra 1.4 ECOTEC CNG
Performance
BMW 123d
Opel Astra 1.4 ECOTEC CNG
148 mph
Maximum Speed
121 mph
6.9 sec
Acceleration 0 to 62 mph
10.9 sec
62 mph
62
mph
mph
96 m
0.000 sec

BMW 123d
62 mph
62
mph
mph
151 m
0.000 sec

Opel Astra 1.4 ECOTEC CNG
▶ REPLAY
7.39 kg/bhp
Weight-to-Power Ratio
12.63 kg/bhp
BMW 123d
7.39 kg/bhp
12.63 kg/bhp
Opel Astra 1.4 ECOTEC CNG
Fuel Economy / Emissions
BMW 123d
Opel Astra 1.4 ECOTEC CNG
Fuel Economy
55 mpg
( 62 MPGe ⓘ Miles per gallon petrol equivalent (MPGe) is a measure of the average distance traveled per unit of energy consumed. MPGe, specified in miles per imperial gallon (~4.546 litres), is used to compare the energy consumption of vehicles that use different energy sources.)
combined ✽ per 100 miles
10.1 kg✽
( 5 MPGe ⓘ Miles per gallon petrol equivalent (MPGe) is a measure of the average distance traveled per unit of energy consumed. MPGe, specified in miles per imperial gallon (~4.546 litres), is used to compare the energy consumption of vehicles that use different energy sources.)
BMW 123d
62 MPGe
5 MPGe
Opel Astra 1.4 ECOTEC CNG
44 mpg
city
13.4 kg
No data
motorway
8.2 kg
51 L
Fuel Tank Capacity
19 kg
621 mi
Range
188 mi
BMW 123d
621 mi
188 mi
Opel Astra 1.4 ECOTEC CNG
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).
46.2 kWh
BMW 123d
104.9 kWh
46.2 kWh
Opel Astra 1.4 ECOTEC CNG
Euro 5
Emission Standard
Euro 6d-TEMP (WLTP) 36AG-AI
135 g/km (NEFZ)
CO2 Emissions
124 g/km (WLTP)
Practical Convenience
BMW 123d
Opel Astra 1.4 ECOTEC CNG
3
Doors
5
4
No. of Seats
5
425 kg
Maximum Payload
526 kg
330 L
Boot Capacity
370 L









1150 L
Boot Capacity (Seats Down)
1210 L