The Comparative Analysis :
BMW 318i (05 - 07) vs. BMW 320si (06 - 07)
€ 26,800
€ 33,000
€ 26,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 33,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the 318i and the 320si are absolutely identical. Both are 4520 mm long, 1817 mm wide and 1421 mm tall.
318i
320si
1421
1817
1989
1421
1817
1989
1817 mm
Width
1817 mm
1989 mm
Width Incl. Mirrors
1989 mm
1421 mm
Height
1421 mm
2760
4520
2760
4520
4520 mm
Length
4520 mm
2760 mm
Wheelbase
2760 mm
Vehicle Weight
318i
320si
1435 kg
Kerb Weight
1395 kg
1880 kg
Gross Vehicle
Weight
Weight
1840 kg
Weight Difference:
40 kg
2.79 %
General
318i
320si
E90
Generation
E90
Saloon
Car Body Style
Saloon
Unleaded (95 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
318i
320si
Straight-four petrol engine (naturally aspirated engine)
Engine Type
Straight-four petrol engine (naturally aspirated engine)
BMW N46
Engine Series
BMW N45
N46-B20
Engine Code
N45-B20


4
Valves
4
4
Cylinders
4
1995 CC
Engine Capacity
1997 CC
127 bhp
at 5750 rpm
Power
171 bhp
at 7000 rpm
318i
127 bhp
171 bhp
320si
180 NM
at 3250 rpm
Max. Torque
200 NM
at 4250 rpm
318i
180 NM
200 NM
320si
Performance
318i
320si
129 mph
Maximum Speed
140 mph
10 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph
62
mph
mph
139 m
0.000 sec
318i
62 mph
62
mph
mph
113 m
0.000 sec
320si
▶ REPLAY
11.3 kg/bhp
Weight-to-Power Ratio
8.16 kg/bhp
318i
11.3 kg/bhp
8.16 kg/bhp
320si
Fuel Economy / Emissions
318i
320si
Fuel Economy
39 mpg
combined
32 mpg
318i
39 mpg
32 mpg
320si
28 mpg
city
22 mpg
No data
motorway
No data
63 L
Fuel Tank Capacity
63 L
536 mi
Range
440 mi
318i
536 mi
440 mi
320si
Environmental Impact
138.2 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).
168.7 kWh
318i
138.2 kWh
168.7 kWh
320si
Euro 4
Emission Standard
Euro 4
175 g/km (NEFZ)
CO2 Emissions
214 g/km (NEFZ)
Practical Convenience
318i
320si
4
Doors
4
5
No. of Seats
5
445 kg
Maximum Payload
445 kg
460 L
Boot Capacity
460 L










No data
Boot Capacity (Seats Down)
No data















