Car comparison

BMW 4 Series Gran Coupe (F36) · Facelift 2017 420ivsBMW X3 (G01) 20i

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

New comparison

BMW 4 Series Gran Coupe (F36) · Facelift 2017

420i

184 hp1998 ccGasolineAWDAutomaticTurbochargedCoupe2017-2021
VS

BMW X3 (G01)

20i

184 hp1998 ccGasolineRWDAutomaticTurbocharged2018-2021

Comparison overview

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

Best choices

BMW 4 Series Gran Coupe (F36) Facelift 2017 420i

  • Quickest 0-100 km/h
    8.1 s
  • Fastest top speed
    231 km/h
    144 mph
  • Most powerful
    184 hp
    137 kW
  • Lightest
    1,615 kg
    3,560 lb
  • Best power-to-weight
    114 hp/t
    85 kW/t
    8.8 kg/hp
  • Lowest combined fuel consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest CO2 emissions
    144 g/km
  • Best estimated range
    968 km
    601 mi
  • Best performance score
    47/100
  • Best economy score
    90/100

BMW X3 (G01) 20i

  • Highest torque
    290 Nm
    214 lb-ft
  • Largest trunk
    550 L
  • Best overall score
    56/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelBMW4 Series Gran Coupe (F36)Facelift 2017420iBMWX3 (G01)20i
Power
184hp137kW
184hp137kW
Torque
270Nm199lb-ft
290Nm214lb-ft
Curb weight
1,615kg3,560lb
1,685kg3,715lb
Gross weight
2,175kg4,795lb
2,400kg5,291lb
Top speed
231 km/h
144 mph
215 km/h
134 mph
To 99% top speed
103.1s99% target: 229 km/h / 142 mph
Calculated
102.4s99% target: 213 km/h / 132 mph
Calculated
0-100 km/h
8.1s
8.2s
0-200 km/h
37.7s
Calculated
51.2s
Calculated
0-60 mph
7.7s
Calculated
7.7s
Calculated
Fuel consumption
6.2L/100 km37.9mpg US45.6mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption city
8.1L/100 km29mpg US34.9mpg UK
-
Fuel consumption highway
5.1L/100 km46.1mpg US55.4mpg UK
-
Quarter mile
15.9s
Calculated
15.9s
Calculated
Power-to-weight
114hp/t85kW/t52hp/1000 lb
Calculated
109hp/t81kW/t50hp/1000 lb
Calculated
Torque-to-weight
167Nm/t112lb-ft/ton
Calculated
172Nm/t115lb-ft/ton
Calculated
Estimated range
968km601mi
Calculated
919km571mi
Calculated
Displacement
1,998cc122cu in
1,998cc122cu in
Length
4,640mm183in
4,708mm185in
Width
1,825mm72in
1,891mm74in
Height
1,404mm55in
1,676mm66in
Wheelbase
2,810mm111in
2,864mm113in
Front track
1,543mm61in
1,620mm64in
Rear track
1,592mm63in
1,636mm64in
Ground clearance
145mm6in
204mm8in
Trunk volume
480L
550L
Max trunk volume
1,300L
1,600L
Doors
4
5
Seats
5
5
Fuel tank
60L
68L
CO2 emissions
144g/km
169g/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 Gran Coupe (F36) Facelift 2017 420iBMW X3 (G01) 20iPowerTorque
  • BMW 4 Series Gran Coupe (F36) Facelift 2017 420i: Power / Torque
  • BMW X3 (G01) 20i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Gran Coupe (F36)Facelift 2017420i5,000 rpm1,350-4,600 rpm5,250 rpm
BMWX3 (G01)20i5,000 rpm1,350-4,600 rpm5,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Gran Coupe (F36)Facelift 2017420iBMWX3 (G01)20i
Acceleration checkpoints
0-60 mph
0-97 km/h
7.7 s
7.7 s
0-100 km/h
0-62 mph
8.1 s
8.2 s
0-200 km/h
0-124 mph
37.7 s
51.2 s
Top speed
231 km/h
144 mph
215 km/h
134 mph
Drag race simulation
60 ft
18 m
2.5 s
2.5 s
330 ft
101 m
6.8 s
6.7 s
1/8 mile
201 m
10.3 s
10.3 s
1000 ft
305 m
13.3 s
13.4 s
1/4 mile
402 m
15.9 s
15.9 s
Trap speed
1/4 mile
402 m
145 km/h
90 mph
140 km/h
87 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420i
184 hp
137 kW
BMWX3 (G01)20i
184 hp
137 kW

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420i
270 Nm
199 lb-ft
BMWX3 (G01)20i
290 Nm
214 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420i
1,615 kg
3,560 lb
BMWX3 (G01)20i
1,685 kg
3,715 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 (F36)Facelift 2017420i
231 km/h
144 mph
BMWX3 (G01)20i
215 km/h
134 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 (F36)Facelift 2017420i8.1 s
BMWX3 (G01)20i8.2 s

The biggest 0-100 km/h difference is between BMW 4 Series Gran Coupe (F36) Facelift 2017 420i and BMW X3 (G01) 20i: 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 Gran Coupe (F36)Facelift 2017420i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMWX3 (G01)20i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Gran Coupe (F36) Facelift 2017 420i and BMW X3 (G01) 20i: 1.2 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 (F36)Facelift 2017420i
114 hp/t
85 kW/t
8.8 kg/hp
BMWX3 (G01)20i
109 hp/t
81 kW/t
9.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420i
968 km
601 mi
BMWX3 (G01)20i
919 km
571 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Gran Coupe (F36)Facelift 2017420i
184 hp
137 kW
8.1 s
231 km/h
144 mph
BMWX3 (G01)20i
184 hp
137 kW
8.2 s
215 km/h
134 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 (F36)Facelift 2017420i
Power
184 hp
137 kW
0-100 km/h8.1 s
Top speed
231 km/h
144 mph
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,640 mm
182.7 in
Height
1,404 mm
55.3 in
BMWX3 (G01)20i
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
215 km/h
134 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,708 mm
185.4 in
Height
1,676 mm
66.0 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 (F36)Facelift 2017420i
Power
184 hp
137 kW
0-100 km/h8.1 s
Top speed
231 km/h
144 mph
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMWX3 (G01)20i
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
215 km/h
134 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

BMW 4 Series Gran Coupe (F36) Facelift 2017 420i 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 (F36)Facelift 2017420i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
8.1 s
BMWX3 (G01)20i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
8.2 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 (F36)Facelift 2017420i
114 hp/t
85 kW/t
8.8 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
BMWX3 (G01)20i
109 hp/t
81 kW/t
9.2 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Gran Coupe (F36)Facelift 2017420iBMWX3 (G01)20i
Power
184 hp
137 kW
184 hp
137 kW
Torque
270 Nm
199 lb-ft
290 Nm
214 lb-ft
Acceleration
8.1 s
8.2 s
Top speed
231 km/h
144 mph
215 km/h
134 mph
Lightness
1,615 kg
3,560 lb
1,685 kg
3,715 lb
Fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,640 mm
182.7 in
Height
1,404 mm
55.3 in
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,708 mm
185.4 in
Height
1,676 mm
66.0 in
Range score
968 km
601 mi
919 km
571 mi
CO2 score
144 g/km
169 g/km
Trunk score
480 L
17.0 cu ft
550 L
19.4 cu ft
Power-to-weight score
114 hp/t
85 kW/t
8.8 kg/hp
109 hp/t
81 kW/t
9.2 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 (F36) Facelift 2017 420iBMW X3 (G01) 20i
Consumption6.2 L/100 km37.9 mpg US45.6 mpg UK7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km10.85 LC100 km12.95 LC100 km
Cost / 100 mi17.46 LC100 mi20.84 LC100 mi
Annual fuel used930 L246 US gal205 UK gal1,110 L293 US gal244 UK gal
Annual fuel cost1,628 LC/year1,943 LC/year

Head-to-head comparisons

BMW 4 Series Gran Coupe (F36) Facelift 2017 420i

  • Is 70 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 16 km/h (10 mph) higher top speed
  • Uses 1.2 L/100 km less fuel
  • Has 5 hp/t better power-to-weight
  • Has 49 km (30 mi) more estimated range
  • Emits 25 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Smallest trunk

BMW X3 (G01) 20i

  • Has 20 Nm more
  • Has 70 L more trunk volume

Pros

  • Highest torque
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Gran Coupe (F36) 420i
BMW X3 (G01) 20i
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