Car comparison

BMW 4 Series Gran Coupe (G26) 430ivsBMW 4 Series Convertible (F33) 425d

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

New comparison

BMW 4 Series Gran Coupe (G26)

430i

245 hp1998 ccGasolineRWDAutomaticTurbochargedCoupe2021-2024
VS

BMW 4 Series Convertible (F33)

425d

224 hp1995 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2016-2017

Comparison overview

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

Best choices

BMW 4 Series Gran Coupe (G26) 430i

  • Quickest 0-100 km/h
    6.2 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    245 hp
    183 kW
  • Lightest
    1,645 kg
    3,627 lb
  • Best power-to-weight
    149 hp/t
    111 kW/t
    6.7 kg/hp
  • Largest trunk
    470 L
  • Best overall score
    64/100
  • Best performance score
    61/100
  • Best practicality score
    69/100

BMW 4 Series Convertible (F33) 425d

  • Highest torque
    450 Nm
    332 lb-ft
  • Lowest combined fuel consumption
    4.8 L/100 km
    49.0 mpg US
    58.9 mpg UK
  • Best estimated range
    1,188 km
    738 mi
  • Best economy score
    94/100

Specification comparison

Specification comparison
ModelBMW4 Series Gran Coupe (G26)430iBMW4 Series Convertible (F33)425d
Power
245hp183kW
224hp167kW
Torque
400Nm295lb-ft
450Nm332lb-ft
Curb weight
1,645kg3,627lb
1,745kg3,847lb
Gross weight
2,200kg4,850lb
2,240kg4,938lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
241 km/h
150 mph
To 99% top speed
86.7s99% target: 257 km/h / 160 mph
Calculated
89.1s99% target: 239 km/h / 148 mph
Calculated
0-100 km/h
6.2s
6.7s
0-200 km/h
22.7s
Calculated
28.2s
Calculated
0-60 mph
5.9s
Calculated
6.3s
Calculated
Fuel consumption
7.6L/100 km30.9mpg US37.2mpg UK
4.8L/100 km49mpg US58.9mpg UK
Fuel consumption city-
5.9L/100 km39.9mpg US47.9mpg UK
Fuel consumption highway-
4.7L/100 km50mpg US60.1mpg UK
Quarter mile
14.3s
Calculated
14.8s
Calculated
Power-to-weight
149hp/t111kW/t68hp/1000 lb
Calculated
128hp/t96kW/t58hp/1000 lb
Calculated
Torque-to-weight
243Nm/t163lb-ft/ton
Calculated
258Nm/t173lb-ft/ton
Calculated
Estimated range
776km482mi
Calculated
1,188km738mi
Calculated
Displacement
1,998cc122cu in
1,995cc122cu in
Length
4,783mm188in
4,638mm183in
Width
1,852mm73in
1,825mm72in
Height
1,442mm57in
1,384mm54in
Wheelbase
2,856mm112in
2,810mm111in
Front track
1,595mm63in
1,545mm61in
Rear track
1,623mm64in
1,594mm63in
Ground clearance
140mm6in
130mm5in
Trunk volume
470L
370L
Max trunk volume
1,290L
-
Doors
5
2
Seats
5
4
Fuel tank
59L
57L

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 Gran Coupe (G26) 430iBMW 4 Series Convertible (F33) 425dPowerTorque
  • BMW 4 Series Gran Coupe (G26) 430i: Power / Torque
  • BMW 4 Series Convertible (F33) 425d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Gran Coupe (G26)430i4,500-6,500 rpm1,600-4,000 rpm6,750 rpm
BMW4 Series Convertible (F33)425d4,400 rpm1,500-3,000 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Gran Coupe (G26)430iBMW4 Series Convertible (F33)425d
Acceleration checkpoints
0-60 mph
0-97 km/h
5.9 s
6.3 s
0-100 km/h
0-62 mph
6.2 s
6.7 s
0-200 km/h
0-124 mph
22.7 s
28.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
241 km/h
150 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.2 s
6.4 s
1/8 mile
201 m
9.3 s
9.6 s
1000 ft
305 m
12.0 s
12.4 s
1/4 mile
402 m
14.3 s
14.8 s
Trap speed
1/4 mile
402 m
163 km/h
101 mph
155 km/h
96 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)430i
245 hp
183 kW
BMW4 Series Convertible (F33)425d
224 hp
167 kW

BMW 4 Series Gran Coupe (G26) 430i has 21 hp more than BMW 4 Series Convertible (F33) 425d.

The biggest power difference is between BMW 4 Series Convertible (F33) 425d and BMW 4 Series Gran Coupe (G26) 430i: 21 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)430i
400 Nm
295 lb-ft
BMW4 Series Convertible (F33)425d
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)430i
1,645 kg
3,627 lb
BMW4 Series Convertible (F33)425d
1,745 kg
3,847 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 Gran Coupe (G26)430i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)425d
241 km/h
150 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)430i6.2 s
BMW4 Series Convertible (F33)425d6.7 s

The biggest 0-100 km/h difference is between BMW 4 Series Gran Coupe (G26) 430i and BMW 4 Series Convertible (F33) 425d: 0.5 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 Gran Coupe (G26)430i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMW4 Series Convertible (F33)425d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (F33) 425d and BMW 4 Series Gran Coupe (G26) 430i: 2.8 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 Gran Coupe (G26)430i
149 hp/t
111 kW/t
6.7 kg/hp
BMW4 Series Convertible (F33)425d
128 hp/t
96 kW/t
7.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)430i
776 km
482 mi
BMW4 Series Convertible (F33)425d
1,188 km
738 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Gran Coupe (G26)430i
245 hp
183 kW
6.2 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)425d
224 hp
167 kW
6.7 s
241 km/h
150 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 Gran Coupe (G26)430i
Power
245 hp
183 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 in
BMW4 Series Convertible (F33)425d
Power
224 hp
167 kW
0-100 km/h6.7 s
Top speed
241 km/h
150 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,384 mm
54.5 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 Gran Coupe (G26)430i
Power
245 hp
183 kW
0-100 km/h6.2 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
BMW4 Series Convertible (F33)425d
Power
224 hp
167 kW
0-100 km/h6.7 s
Top speed
241 km/h
150 mph
4.8 L/100 km
49.0 mpg US
58.9 mpg UK

BMW 4 Series Gran Coupe (G26) 430i 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 Gran Coupe (G26)430i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
6.2 s
BMW4 Series Convertible (F33)425d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
6.7 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 Gran Coupe (G26)430i
149 hp/t
111 kW/t
6.7 kg/hp
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMW4 Series Convertible (F33)425d
128 hp/t
96 kW/t
7.8 kg/hp
4.8 L/100 km
49.0 mpg US
58.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Gran Coupe (G26)430iBMW4 Series Convertible (F33)425d
Power
245 hp
183 kW
224 hp
167 kW
Torque
400 Nm
295 lb-ft
450 Nm
332 lb-ft
Acceleration
6.2 s
6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
241 km/h
150 mph
Lightness
1,645 kg
3,627 lb
1,745 kg
3,847 lb
Fuel consumption
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,384 mm
54.5 in
Range score
776 km
482 mi
1,188 km
738 mi
Trunk score
470 L
16.6 cu ft
370 L
13.1 cu ft
Power-to-weight score
149 hp/t
111 kW/t
6.7 kg/hp
128 hp/t
96 kW/t
7.8 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 Gran Coupe (G26) 430iBMW 4 Series Convertible (F33) 425d
Consumption7.6 L/100 km30.9 mpg US37.2 mpg UK4.8 L/100 km49 mpg US58.9 mpg UK
Cost / 100 km13.30 LC100 km8.40 LC100 km
Cost / 100 mi21.40 LC100 mi13.52 LC100 mi
Annual fuel used1,140 L301 US gal251 UK gal720 L190 US gal158 UK gal
Annual fuel cost1,995 LC/year1,260 LC/year

Head-to-head comparisons

BMW 4 Series Gran Coupe (G26) 430i

  • Has 21 hp more
  • Is 100 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 19 km/h (12 mph) higher top speed
  • Has 21 hp/t better power-to-weight
  • Has 100 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption

BMW 4 Series Convertible (F33) 425d

  • Has 50 Nm more
  • Uses 2.8 L/100 km less fuel
  • Has 411 km (255 mi) more estimated range

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Gran Coupe (G26) 430i
BMW 4 Series Convertible (F33) 425d
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BMW 4 Series Gran Coupe (G26) 430i vs BMW 4 Series Convertible (F33) 425d - car comparison - FastVsFaster