Car comparison

BMW 4 Series Convertible (F33) 435ivsBMW X4 (F26) 35i

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

New comparison

BMW 4 Series Convertible (F33)

435i

306 hp2979 ccGasolineAWDManualTurbochargedCabriolet / convertible2014-2016
VS

BMW X4 (F26)

35i

306 hp2979 ccGasolineAWDAutomaticTurbocharged2014-2018

Comparison overview

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

Best choices

BMW X4 (F26) 35i

  • Quickest 0-100 km/h
    5.5 s
  • Lowest combined fuel consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Lowest city consumption
    10.7 L/100 km
    22.0 mpg US
    26.4 mpg UK
  • Lowest CO2 emissions
    193 g/km
  • Best estimated range
    807 km
    502 mi
  • Largest trunk
    500 L
  • Best overall score
    67/100
  • Best economy score
    85/100
  • Best practicality score
    75/100

BMW 4 Series Convertible (F33) 435i

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    306 hp
    228 kW
  • Highest torque
    400 Nm
    295 lb-ft
  • Lightest
    1,810 kg
    3,990 lb
  • Best power-to-weight
    169 hp/t
    126 kW/t
    5.9 kg/hp
  • Lowest highway consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Best performance score
    64/100

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (F33)435iBMWX4 (F26)35i
Power
306hp228kW
306hp228kW
Torque
400Nm295lb-ft
400Nm295lb-ft
Curb weight
1,810kg3,990lb
1,815kg4,001lb
Gross weight
2,260kg4,982lb
2,405kg5,302lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
247 km/h
153 mph
To 99% top speed
81.5s99% target: 257 km/h / 160 mph
Calculated
81.6s99% target: 245 km/h / 152 mph
Calculated
0-100 km/h
5.6s
5.5s
0-200 km/h
20.9s
Calculated
23.1s
Calculated
0-60 mph
5.3s
Calculated
5.2s
Calculated
Fuel consumption
8.7L/100 km27mpg US32.5mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Fuel consumption city
12.3L/100 km19.1mpg US23.0mpg UK
10.7L/100 km22mpg US26.4mpg UK
Fuel consumption highway
6.7L/100 km35.1mpg US42.2mpg UK
6.9L/100 km34.1mpg US40.9mpg UK
Quarter mile
13.7s
Calculated
13.7s
Calculated
Power-to-weight
169hp/t126kW/t77hp/1000 lb
Calculated
169hp/t126kW/t76hp/1000 lb
Calculated
Torque-to-weight
221Nm/t148lb-ft/ton
Calculated
220Nm/t147lb-ft/ton
Calculated
Estimated range
690km429mi
Calculated
807km502mi
Calculated
Displacement
2,979cc182cu in
2,979cc182cu in
Length
4,638mm183in
4,671mm184in
Width
1,825mm72in
1,881mm74in
Height
1,399mm55in
1,624mm64in
Wheelbase
2,810mm111in
2,810mm111in
Front track
1,544mm61in
1,616mm64in
Rear track
1,590mm63in
1,632mm64in
Ground clearance
145mm6in
204mm8in
Trunk volume
370L
500L
Max trunk volume-
1,400L
Doors
2
5
Seats
4
5
Fuel tank
60L
67L
CO2 emissions
204g/km
193g/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) 435iBMW X4 (F26) 35iPowerTorque
  • BMW 4 Series Convertible (F33) 435i: Power / Torque
  • BMW X4 (F26) 35i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (F33)435i5,800-6,400 rpm1,200-5,000 rpm6,650 rpm
BMWX4 (F26)35i5,800-6,400 rpm1,200-5,000 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (F33)435iBMWX4 (F26)35i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.2 s
0-100 km/h
0-62 mph
5.6 s
5.5 s
0-200 km/h
0-124 mph
20.9 s
23.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
247 km/h
153 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.9 s
5.8 s
1/8 mile
201 m
9.0 s
8.9 s
1000 ft
305 m
11.6 s
11.5 s
1/4 mile
402 m
13.7 s
13.7 s
Trap speed
1/4 mile
402 m
167 km/h
104 mph
164 km/h
102 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)435i
306 hp
228 kW
BMWX4 (F26)35i
306 hp
228 kW

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)435i
400 Nm
295 lb-ft
BMWX4 (F26)35i
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)435i
1,810 kg
3,990 lb
BMWX4 (F26)35i
1,815 kg
4,001 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)435i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX4 (F26)35i
247 km/h
153 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)435i5.6 s
BMWX4 (F26)35i5.5 s

The biggest 0-100 km/h difference is between BMW X4 (F26) 35i and BMW 4 Series Convertible (F33) 435i: 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)435i
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
BMWX4 (F26)35i
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

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)435i
169 hp/t
126 kW/t
5.9 kg/hp
BMWX4 (F26)35i
169 hp/t
126 kW/t
5.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)435i
690 km
429 mi
BMWX4 (F26)35i
807 km
502 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (F33)435i
306 hp
228 kW
5.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX4 (F26)35i
306 hp
228 kW
5.5 s
247 km/h
153 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)435i
Power
306 hp
228 kW
0-100 km/h5.6 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
BMWX4 (F26)35i
Power
306 hp
228 kW
0-100 km/h5.5 s
Top speed
247 km/h
153 mph
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,671 mm
183.9 in
Height
1,624 mm
63.9 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)435i
Power
306 hp
228 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
BMWX4 (F26)35i
Power
306 hp
228 kW
0-100 km/h5.5 s
Top speed
247 km/h
153 mph
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

BMW 4 Series Convertible (F33) 435i 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)435i
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
5.6 s
BMWX4 (F26)35i
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
5.5 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)435i
169 hp/t
126 kW/t
5.9 kg/hp
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
BMWX4 (F26)35i
169 hp/t
126 kW/t
5.9 kg/hp
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (F33)435iBMWX4 (F26)35i
Power
306 hp
228 kW
306 hp
228 kW
Torque
400 Nm
295 lb-ft
400 Nm
295 lb-ft
Acceleration
5.6 s
5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
247 km/h
153 mph
Lightness
1,810 kg
3,990 lb
1,815 kg
4,001 lb
Fuel consumption
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
8.3 L/100 km
28.3 mpg US
34.0 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
500 L
17.7 cu ft
Length
4,671 mm
183.9 in
Height
1,624 mm
63.9 in
Range score
690 km
429 mi
807 km
502 mi
CO2 score
204 g/km
193 g/km
Trunk score
370 L
13.1 cu ft
500 L
17.7 cu ft
Power-to-weight score
169 hp/t
126 kW/t
5.9 kg/hp
169 hp/t
126 kW/t
5.9 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) 435iBMW X4 (F26) 35i
Consumption8.7 L/100 km27 mpg US32.5 mpg UK8.3 L/100 km28.3 mpg US34 mpg UK
Cost / 100 km15.22 LC100 km14.53 LC100 km
Cost / 100 mi24.50 LC100 mi23.38 LC100 mi
Annual fuel used1,305 L345 US gal287 UK gal1,245 L329 US gal274 UK gal
Annual fuel cost2,284 LC/year2,179 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (F33) 435i

  • Is 5 kg lighter
  • Has 13 km/h (8 mph) higher top speed
  • Has 0 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio

Cons

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

BMW X4 (F26) 35i

  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.4 L/100 km less fuel
  • Has 118 km (73 mi) more estimated range
  • Has 130 L more trunk volume
  • Emits 11 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • 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) 435i
BMW X4 (F26) 35i
Compare selected cars
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