The Comparative Analysis :
BMW X3 xDrive28i Automatic (12 - 14) vs. BMW X4 M40i Steptronic (15 - 18)
€ 46,700
€ 68,400
€ 46,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 68,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. The X3 xDrive28i is 0.9 inches shorter, 0.8 inches narrower and 1.5 inches taller than the X4 M40i.
X3 xDrive28i
X4 M40i
65.4
74.1
82.6
63.9
74.8
82.6
74.1 in
Width
74.8 in
82.6 in
Width Incl. Mirrors
82.6 in
65.4 in
Height
63.9 in
110.6
183
110.6
183.9
183 in
Length
183.9 in
110.6 in
Wheelbase
110.6 in
Vehicle Weight
X3 xDrive28i
X4 M40i
3957 lb
Curb Weight
4222 lb
5093 lb
Gross Vehicle
Weight
Weight
5357 lb
Weight Difference:
265 lb
6.28 %
General
X3 xDrive28i
X4 M40i
F25
Generation
F26
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
X3 xDrive28i
X4 M40i
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine with turbocharger
BMW N20
Engine Series
BMW N55
N20-B20
Engine Code
N55-B30


4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
242 hp
at 5000 rpm
Power
355 hp
at 5800 rpm
X3 xDrive28i
242 hp
355 hp
X4 M40i
258 lb‑ft
at 1250 rpm
Max. Torque
343 lb‑ft
at 1350 rpm
X3 xDrive28i
258 lb‑ft
343 lb‑ft
X4 M40i
Performance
X3 xDrive28i
X4 M40i
143 mph
Maximum Speed
155 mph
6.7 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
305 ft
0.000 sec
X3 xDrive28i
62 mph
62
mph
mph
223 ft
0.000 sec
X4 M40i
▶ REPLAY
16.35 lb/hp
Weight-to-Power Ratio
11.89 lb/hp
X3 xDrive28i
16.35 lb/hp
11.89 lb/hp
X4 M40i
Fuel Economy / Emissions
X3 xDrive28i
X4 M40i
Fuel Economy
31 mpg
combined
27 mpg
X3 xDrive28i
31 mpg
27 mpg
X4 M40i
26 mpg
city
21 mpg
No data
highway
No data
17.7 gal
Fuel Tank Capacity
17.7 gal
555 mi
Range
484 mi
X3 xDrive28i
555 mi
484 mi
X4 M40i
Environmental Impact
142.1 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).
162.9 kWh
X3 xDrive28i
142.1 kWh
162.9 kWh
X4 M40i
Euro 5
Emission Standard
Euro 6b (NEFZ)
282 g/mi (NEFZ)
CO2 Emissions
320 g/mi (NEFZ)
Practical Convenience
X3 xDrive28i
X4 M40i
5
Doors
5
5
No. of Seats
5
1135 lb
Maximum Payload
1135 lb
15.6 cu ft
Trunk Volume
14.2 cu ft










45.3 cu ft
Cargo Volume (Seats Down)
39.6 cu ft













