The Comparative Analysis :
BMW 330xi Automatic (07 - 08) vs. BMW 320si (06 - 07)
€ 43,800
€ 33,000
€ 43,800
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 330xi and the 320si are absolutely identical. Both are 178 inches long, 71.5 inches wide and 55.9 inches tall.
330xi
320si
55.9
71.5
78.3
55.9
71.5
78.3
71.5 in
Width
71.5 in
78.3 in
Width Incl. Mirrors
78.3 in
55.9 in
Height
55.9 in
108.7
178
108.7
178
178 in
Length
178 in
108.7 in
Wheelbase
108.7 in
Vehicle Weight
330xi
320si
3682 lb
Curb Weight
3075 lb
4663 lb
Gross Vehicle
Weight
Weight
4057 lb
Weight Difference:
606 lb
16.46 %
General
330xi
320si
E90
Generation
E90
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Premium Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

6-speed automatic transmission
Transmission
6-speed manual transmission
Engine
330xi
320si
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine (naturally aspirated engine)
BMW N53
Engine Series
BMW N45
N53-B30
Engine Code
N45-B20


4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
268 hp
at 6700 rpm
Power
171 hp
at 7000 rpm
330xi
268 hp
171 hp
320si
236 lb‑ft
at 2750 rpm
Max. Torque
148 lb‑ft
at 4250 rpm
330xi
236 lb‑ft
148 lb‑ft
320si
Performance
330xi
320si
155 mph
Maximum Speed
140 mph
6.4 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph
62
mph
mph
292 ft
0.000 sec
330xi
62 mph
62
mph
mph
371 ft
0.000 sec
320si
▶ REPLAY
13.74 lb/hp
Weight-to-Power Ratio
17.98 lb/hp
330xi
13.74 lb/hp
17.98 lb/hp
320si
Fuel Economy / Emissions
330xi
320si
Fuel Economy
29 mpg
combined
26 mpg
330xi
29 mpg
26 mpg
320si
21 mpg
city
18 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
16.6 gal
490 mi
Range
440 mi
330xi
490 mi
440 mi
320si
Environmental Impact
151.6 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
330xi
151.6 kWh
168.7 kWh
320si
Euro 4
Emission Standard
Euro 4
311 g/mi (NEFZ)
CO2 Emissions
344 g/mi (NEFZ)
Practical Convenience
330xi
320si
4
Doors
4
5
No. of Seats
5
981 lb
Maximum Payload
981 lb
13 cu ft
Trunk Volume
13 cu ft










No data
Cargo Volume (Seats Down)
No data

















