The Comparative Analysis :
BMW 318i Convertible (10 - 14) vs. BMW M3 Convertible (01 - 06)
€ 39,100
€ 63,800
€ 39,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 63,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 318i Cabrio is slightly bigger in every dimension. It's 4.7 inches longer, 0.1 inches wider and 0.5 inches taller than the M3 Cabrio.
318i Cabrio
M3 Cabrio
54.5
70.2
78.1
54
70.1
78
70.2 in
Width
70.1 in
78.1 in
Width Incl. Mirrors
78 in
54.5 in
Height
54 in
108.7
181.6
107.5
176.9
181.6 in
Length
176.9 in
108.7 in
Wheelbase
107.5 in
Vehicle Weight
318i Cabrio
M3 Cabrio
3682 lb
Curb Weight
3814 lb
4464 lb
Gross Vehicle
Weight
Weight
4630 lb
Weight Difference:
132 lb
3.46 %
General
318i Cabrio
M3 Cabrio
E93
Generation
E46
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
318i Cabrio
M3 Cabrio
Straight-four gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
BMW N43
Engine Series
BMW S54
N43-B20
Engine Code
S54-B32
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3.2 L / 157 cu in
141 hp
at 6000 rpm
Power
338 hp
at 7900 rpm
318i Cabrio
141 hp
338 hp
M3 Cabrio
140 lb‑ft
at 4250 rpm
Max. Torque
269 lb‑ft
at 4900 rpm
318i Cabrio
140 lb‑ft
269 lb‑ft
M3 Cabrio
Performance
318i Cabrio
M3 Cabrio
130 mph
Maximum Speed
155 mph
10.3 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
469 ft
0.000 sec
318i Cabrio
62 mph
62
mph
mph
249 ft
0.000 sec
M3 Cabrio
▶ REPLAY
26.11 lb/hp
Weight-to-Power Ratio
11.28 lb/hp
318i Cabrio
26.11 lb/hp
11.28 lb/hp
M3 Cabrio
Fuel Economy / Emissions
318i Cabrio
M3 Cabrio
Fuel Economy
36 mpg
combined
17 mpg
318i Cabrio
36 mpg
17 mpg
M3 Cabrio
28 mpg
city
11 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
16.6 gal
593 mi
Range
288 mi
318i Cabrio
593 mi
288 mi
M3 Cabrio
Environmental Impact
125 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).
257.7 kWh
318i Cabrio
125 kWh
257.7 kWh
M3 Cabrio
Euro 5
Emission Standard
Euro 4
248 g/mi (NEFZ)
CO2 Emissions
528 g/mi (NEFZ)
Practical Convenience
318i Cabrio
M3 Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
816 lb
9.9 cu ft
Trunk Volume
8.5 cu ft
No data
Cargo Volume (Seats Down)
No data
