Car comparison

BMW 4 Series Convertible (F33) 440ivsBMW X5 (F15) M50d

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

BMW 4 Series Convertible (F33)

440i

326 hp2998 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2016-2016
VS

BMW X5 (F15)

M50d

381 hp2993 ccDieselAWDAutomaticTurbocharged2013-2018

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

BMW X5 (F15) M50d

  • Quickest 0-100 km/h
    5.3 s
  • Most powerful
    381 hp
    284 kW
  • Highest torque
    740 Nm
    546 lb-ft
  • Lowest combined fuel consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Lowest city consumption
    7.6 L/100 km
    30.9 mpg US
    37.2 mpg UK
  • Best estimated range
    1,269 km
    788 mi
  • Largest trunk
    650 L
  • Best overall score
    76/100
  • Best performance score
    73/100
  • Best economy score
    89/100
  • Best practicality score
    82/100

BMW 4 Series Convertible (F33) 440i

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,850 kg
    4,079 lb
  • Best power-to-weight
    176 hp/t
    131 kW/t
    5.7 kg/hp
  • Lowest highway consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest CO2 emissions
    177 g/km

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (F33)440iBMWX5 (F15)M50d
Power
326hp243kW
381hp284kW
Torque
450Nm332lb-ft
740Nm546lb-ft
Curb weight
1,850kg4,079lb
2,190kg4,828lb
Gross weight
2,300kg5,071lb
2,900kg6,393lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
250 km/h
155 mph
To 99% top speed
77.7s99% target: 257 km/h / 160 mph
Calculated
91.0s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.4s
5.3s
0-200 km/h
20.0s
Calculated
23.4s
Calculated
0-60 mph
5.1s
Calculated
5.0s
Calculated
Fuel consumption
7.6L/100 km30.9mpg US37.2mpg UK
6.7L/100 km35.1mpg US42.2mpg UK
Fuel consumption city
10.3L/100 km22.8mpg US27.4mpg UK
7.6L/100 km30.9mpg US37.2mpg UK
Fuel consumption highway
6.1L/100 km38.6mpg US46.3mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
13.6s
Calculated
13.6s
Calculated
Power-to-weight
176hp/t131kW/t80hp/1000 lb
Calculated
174hp/t130kW/t79hp/1000 lb
Calculated
Torque-to-weight
243Nm/t163lb-ft/ton
Calculated
338Nm/t226lb-ft/ton
Calculated
Estimated range
789km491mi
Calculated
1,269km788mi
Calculated
Displacement
2,998cc183cu in
2,993cc183cu in
Length
4,638mm183in
4,886mm192in
Width
1,825mm72in
1,938mm76in
Height
1,399mm55in
1,762mm69in
Wheelbase
2,810mm111in
2,933mm115in
Front track
1,544mm61in
1,662mm65in
Rear track
1,590mm63in
1,702mm67in
Ground clearance
145mm6in
209mm8in
Trunk volume
370L
650L
Max trunk volume-
1,870L
Doors
2
5
Seats
4
5
Fuel tank
60L
85L
CO2 emissions
177g/km
177g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

BMW 4 Series Convertible (F33) 440iBMW X5 (F15) M50dPowerTorque
  • BMW 4 Series Convertible (F33) 440i: Power / Torque
  • BMW X5 (F15) M50d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (F33)440i5,500 rpm1,380-5,000 rpm5,750 rpm
BMWX5 (F15)M50d4,000-4,400 rpm2,000-3,000 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (F33)440iBMWX5 (F15)M50d
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.0 s
0-100 km/h
0-62 mph
5.4 s
5.3 s
0-200 km/h
0-124 mph
20.0 s
23.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
250 km/h
155 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.9 s
5.7 s
1/8 mile
201 m
8.8 s
8.7 s
1000 ft
305 m
11.4 s
11.4 s
1/4 mile
402 m
13.6 s
13.6 s
Trap speed
1/4 mile
402 m
170 km/h
105 mph
163 km/h
101 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
326 hp
243 kW
BMWX5 (F15)M50d
381 hp
284 kW

BMW X5 (F15) M50d has 55 hp more than BMW 4 Series Convertible (F33) 440i.

The biggest power difference is between BMW 4 Series Convertible (F33) 440i and BMW X5 (F15) M50d: 55 hp (41 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
450 Nm
332 lb-ft
BMWX5 (F15)M50d
740 Nm
546 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
1,850 kg
4,079 lb
BMWX5 (F15)M50d
2,190 kg
4,828 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX5 (F15)M50d
250 km/h
155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i5.4 s
BMWX5 (F15)M50d5.3 s

The biggest 0-100 km/h difference is between BMW X5 (F15) M50d and BMW 4 Series Convertible (F33) 440i: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMWX5 (F15)M50d
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

The biggest fuel consumption difference is between BMW X5 (F15) M50d and BMW 4 Series Convertible (F33) 440i: 0.9 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
176 hp/t
131 kW/t
5.7 kg/hp
BMWX5 (F15)M50d
174 hp/t
130 kW/t
5.7 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
BMW4 Series Convertible (F33)440i
789 km
491 mi
BMWX5 (F15)M50d
1,269 km
788 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (F33)440i
326 hp
243 kW
5.4 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX5 (F15)M50d
381 hp
284 kW
5.3 s
250 km/h
155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
BMW4 Series Convertible (F33)440i
Power
326 hp
243 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,399 mm
55.1 in
BMWX5 (F15)M50d
Power
381 hp
284 kW
0-100 km/h5.3 s
Top speed
250 km/h
155 mph
Doors/seats
5 doors
5 seats
Trunk
650 L
23.0 cu ft
Length
4,886 mm
192.4 in
Height
1,762 mm
69.4 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
BMW4 Series Convertible (F33)440i
Power
326 hp
243 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMWX5 (F15)M50d
Power
381 hp
284 kW
0-100 km/h5.3 s
Top speed
250 km/h
155 mph
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

BMW X5 (F15) M50d is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
BMW4 Series Convertible (F33)440i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
5.4 s
BMWX5 (F15)M50d
6.7 L/100 km
35.1 mpg US
42.2 mpg UK
5.3 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
BMW4 Series Convertible (F33)440i
176 hp/t
131 kW/t
5.7 kg/hp
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMWX5 (F15)M50d
174 hp/t
130 kW/t
5.7 kg/hp
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (F33)440iBMWX5 (F15)M50d
Power
326 hp
243 kW
381 hp
284 kW
Torque
450 Nm
332 lb-ft
740 Nm
546 lb-ft
Acceleration
5.4 s
5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,850 kg
4,079 lb
2,190 kg
4,828 lb
Fuel consumption
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
6.7 L/100 km
35.1 mpg US
42.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,399 mm
55.1 in
Doors/seats
5 doors
5 seats
Trunk
650 L
23.0 cu ft
Length
4,886 mm
192.4 in
Height
1,762 mm
69.4 in
Range score
789 km
491 mi
1,269 km
788 mi
CO2 score
177 g/km
177 g/km
Trunk score
370 L
13.1 cu ft
650 L
23.0 cu ft
Power-to-weight score
176 hp/t
131 kW/t
5.7 kg/hp
174 hp/t
130 kW/t
5.7 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleBMW 4 Series Convertible (F33) 440iBMW X5 (F15) M50d
Consumption7.6 L/100 km30.9 mpg US37.2 mpg UK6.7 L/100 km35.1 mpg US42.2 mpg UK
Cost / 100 km13.30 LC100 km11.73 LC100 km
Cost / 100 mi21.40 LC100 mi18.87 LC100 mi
Annual fuel used1,140 L301 US gal251 UK gal1,005 L265 US gal221 UK gal
Annual fuel cost1,995 LC/year1,759 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (F33) 440i

  • Is 340 kg lighter
  • Has 10 km/h (6 mph) higher top speed
  • Has 2 hp/t better power-to-weight

Pros

  • Highest top speed
  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

BMW X5 (F15) M50d

  • Has 55 hp more
  • Has 290 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.9 L/100 km less fuel
  • Has 479 km (298 mi) more estimated range
  • Has 280 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Convertible (F33) 440i
BMW X5 (F15) M50d
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