The Comparative Analysis :
BMW 318i Convertible (10 - 14) vs. BMW M4 Convertible (14 - 17)
€ 39,100
€ 79,700
€ 39,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 79,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 318i Cabrio is slightly smaller in every dimension. It's 2.3 inches shorter, 3.5 inches narrower and 0.1 inches lower than the M4 Cabrio.
318i Cabrio
M4 Cabrio
54.5
70.2
78.1
54.6
73.6
79.3
70.2 in
Width
73.6 in
78.1 in
Width Incl. Mirrors
79.3 in
54.5 in
Height
54.6 in
108.7
181.6
110.7
183.9
181.6 in
Length
183.9 in
108.7 in
Wheelbase
110.7 in
Vehicle Weight
318i Cabrio
M4 Cabrio
3682 lb
Curb Weight
4023 lb
4464 lb
Gross Vehicle
Weight
Weight
4960 lb
Weight Difference:
342 lb
8.5 %
General
318i Cabrio
M4 Cabrio
E93
Generation
F83
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
M4 Cabrio
Straight-four gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with two turbochargers (biturbo)
BMW N43
Engine Series
BMW S55
N43-B20
Engine Code
S55-B30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
141 hp
at 6000 rpm
Power
425 hp
at 5500 rpm
318i Cabrio
141 hp
425 hp
M4 Cabrio
140 lb‑ft
at 4250 rpm
Max. Torque
406 lb‑ft
at 1850 rpm
318i Cabrio
140 lb‑ft
406 lb‑ft
M4 Cabrio
Performance
318i Cabrio
M4 Cabrio
130 mph
Maximum Speed
155 mph
10.3 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
469 ft
0.000 sec
318i Cabrio
62 mph
62
mph
mph
210 ft
0.000 sec
M4 Cabrio
▶ REPLAY
26.11 lb/hp
Weight-to-Power Ratio
9.47 lb/hp
318i Cabrio
26.11 lb/hp
9.47 lb/hp
M4 Cabrio
Fuel Economy / Emissions
318i Cabrio
M4 Cabrio
Fuel Economy
36 mpg
combined
26 mpg
318i Cabrio
36 mpg
26 mpg
M4 Cabrio
28 mpg
city
19 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.9 gal
593 mi
Range
409 mi
318i Cabrio
593 mi
409 mi
M4 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).
172.4 kWh
318i Cabrio
125 kWh
172.4 kWh
M4 Cabrio
Euro 5
Emission Standard
Euro 6b (NEFZ)
248 g/mi (NEFZ)
CO2 Emissions
343 g/mi (NEFZ)
Practical Convenience
318i Cabrio
M4 Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
937 lb
9.9 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data
