The Comparative Analysis :
BMW 320si (06 - 07) vs. BMW M3 (14 - 18)
€ 33,000

€ 71,800

€ 33,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 71,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 320si is considerably smaller in every dimension. It's 15.1 cm shorter, 6 cm narrower and 0.3 cm lower than the M3.
320si
M3
1421
1817
1989
1424
1877
2037
1817 mm
Width
1877 mm
1989 mm
Width Incl. Mirrors
2037 mm
1421 mm
Height
1424 mm
2760
4520
2812
4671
4520 mm
Length
4671 mm
2760 mm
Wheelbase
2812 mm
Vehicle Weight
320si
M3
1395 kg
Kerb Weight
1595 kg
1840 kg
Gross Vehicle
Weight
Weight
2100 kg

Weight Difference:
200 kg
12.54 %

General
320si
M3
E90
Generation
F80
Saloon
Car Body Style
Saloon
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
320si
M3
Straight-four petrol engine (naturally aspirated engine)
Engine Type
Straight-six petrol engine with two turbochargers (biturbo)
BMW N45
Engine Series
BMW S55
N45-B20
Engine Code
S55-B30

4
Valves
4
4
Cylinders
6
1997 CC
Engine Capacity
2979 CC
171 bhp
at 7000 rpm
Power
425 bhp
at 5500 rpm
320si
171 bhp
425 bhp
M3
200 NM
at 4250 rpm
Max. Torque
550 NM
at 1850 rpm
320si
200 NM
550 NM
M3
Performance
320si
M3
140 mph
Maximum Speed
155 mph
8.1 sec
Acceleration 0 to 62 mph
4.3 sec
62 mph
62
mph
mph
113 m
0.000 sec

320si
62 mph
62
mph
mph
60 m
0.000 sec

M3
▶ REPLAY
8.16 kg/bhp
Weight-to-Power Ratio
3.75 kg/bhp
320si
8.16 kg/bhp
3.75 kg/bhp
M3
Fuel Economy / Emissions
320si
M3
Fuel Economy
32 mpg
combined
32 mpg
320si
32 mpg
32 mpg
M3
22 mpg
city
24 mpg
No data
motorway
No data
63 L
Fuel Tank Capacity
60 L
440 mi
Range
424 mi
320si
440 mi
424 mi
M3
Environmental Impact
168.7 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).
166.7 kWh
320si
168.7 kWh
166.7 kWh
M3
Euro 4
Emission Standard
Euro 6b (NEFZ)
214 g/km (NEFZ)
CO2 Emissions
204 g/km (NEFZ)
Practical Convenience
320si
M3
4
Doors
4
5
No. of Seats
5
445 kg
Maximum Payload
505 kg
460 L
Boot Capacity
480 L










No data
Boot Capacity (Seats Down)
No data