The Comparative Analysis :
BMW M3 M DKG (14 - 18) vs. BMW 320si (06 - 07)
€ 75,700
€ 33,000
€ 75,700
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 M3 is considerably bigger in every dimension. It's 5.9 inches longer, 2.4 inches wider and 0.1 inches taller than the 320si.
M3
320si
56.1
73.9
80.2
55.9
71.5
78.3
73.9 in
Width
71.5 in
80.2 in
Width Incl. Mirrors
78.3 in
56.1 in
Height
55.9 in
110.7
183.9
108.7
178
183.9 in
Length
178 in
110.7 in
Wheelbase
108.7 in
Vehicle Weight
M3
320si
3605 lb
Curb Weight
3075 lb
4630 lb
Gross Vehicle
Weight
Weight
4057 lb
Weight Difference:
529 lb
14.68 %
General
M3
320si
F80
Generation
E90
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

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

4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
425 hp
at 5500 rpm
Power
171 hp
at 7000 rpm
M3
425 hp
171 hp
320si
406 lb‑ft
at 1850 rpm
Max. Torque
148 lb‑ft
at 4250 rpm
M3
406 lb‑ft
148 lb‑ft
320si
Performance
M3
320si
155 mph
Maximum Speed
140 mph
4.1 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph
62
mph
mph
187 ft
0.000 sec
M3
62 mph
62
mph
mph
371 ft
0.000 sec
320si
▶ REPLAY
8.48 lb/hp
Weight-to-Power Ratio
17.98 lb/hp
M3
8.48 lb/hp
17.98 lb/hp
320si
Fuel Economy / Emissions
M3
320si
Fuel Economy
28 mpg
combined
26 mpg
M3
28 mpg
26 mpg
320si
21 mpg
city
18 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
449 mi
Range
440 mi
M3
449 mi
440 mi
320si
Environmental Impact
157.2 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
M3
157.2 kWh
168.7 kWh
320si
Euro 6b (NEFZ)
Emission Standard
Euro 4
312 g/mi (NEFZ)
CO2 Emissions
344 g/mi (NEFZ)
Practical Convenience
M3
320si
4
Doors
4
5
No. of Seats
5
1025 lb
Maximum Payload
981 lb
13.6 cu ft
Trunk Volume
13 cu ft










No data
Cargo Volume (Seats Down)
No data




















