Car comparison

BMW 4 Series Gran Coupe (G26) 420ivsBMW X1 (U11) 20i

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

New comparison

BMW 4 Series Gran Coupe (G26)

420i

170 hp1597 ccGasolineRWDAutomaticTurbochargedCoupe2021-2024
VS

BMW X1 (U11)

20i

156 hp1499 ccGasolineFWDAutomaticTurbocharged2022-present

Comparison overview

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

Best choices

BMW X1 (U11) 20i

  • Quickest 0-100 km/h
    8.3 s
  • Lightest
    1,550 kg
    3,417 lb
  • Lowest combined fuel consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Largest trunk
    500 L
  • Best overall score
    54/100
  • Best economy score
    89/100
  • Best practicality score
    75/100

BMW 4 Series Gran Coupe (G26) 420i

  • Fastest top speed
    227 km/h
    141 mph
  • Most powerful
    170 hp
    127 kW
  • Highest torque
    250 Nm
    184 lb-ft
  • Best power-to-weight
    105 hp/t
    78 kW/t
    9.5 kg/hp
  • Best estimated range
    728 km
    453 mi
  • Best performance score
    45/100

Specification comparison

Specification comparison
ModelBMW4 Series Gran Coupe (G26)420iBMWX1 (U11)20i
Power
170hp127kW
156hp116kW
Torque
250Nm184lb-ft
240Nm177lb-ft
Curb weight
1,620kg3,571lb
1,550kg3,417lb
Gross weight
2,175kg4,795lb
2,120kg4,674lb
Top speed
227 km/h
141 mph
216 km/h
134 mph
To 99% top speed
104.2s99% target: 225 km/h / 140 mph
Calculated
94.3s99% target: 214 km/h / 133 mph
Calculated
0-100 km/h
8.6s
8.3s
0-200 km/h
41.2s
Calculated
47.2s
Calculated
0-60 mph
8.1s
Calculated
7.8s
Calculated
Fuel consumption
8.1L/100 km29mpg US34.9mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city
8L/100 km29.4mpg US35.3mpg UK
-
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
-
Quarter mile
16.2s
Calculated
16.0s
Calculated
Power-to-weight
105hp/t78kW/t48hp/1000 lb
Calculated
101hp/t75kW/t46hp/1000 lb
Calculated
Torque-to-weight
154Nm/t103lb-ft/ton
Calculated
155Nm/t104lb-ft/ton
Calculated
Estimated range
728km453mi
Calculated
682km424mi
Calculated
Displacement
1,597cc97cu in
1,499cc91cu in
Length
4,783mm188in
4,500mm177in
Width
1,852mm73in
1,845mm73in
Height
1,442mm57in
1,642mm65in
Wheelbase
2,856mm112in
2,692mm106in
Front track
1,595mm63in
1,592mm63in
Rear track
1,623mm64in
1,593mm63in
Ground clearance-
205mm8in
Trunk volume
470L
500L
Max trunk volume
1,290L
1,545L
Doors
5
5
Seats
5
5
Fuel tank
59L
45L

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) 420iBMW X1 (U11) 20iPowerTorque
  • BMW 4 Series Gran Coupe (G26) 420i: Power / Torque
  • BMW X1 (U11) 20i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Gran Coupe (G26)420i5,000-5,500 rpm2,000-4,400 rpm5,750 rpm
BMWX1 (U11)20i4,700-6,500 rpm1,500-4,400 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Gran Coupe (G26)420iBMWX1 (U11)20i
Acceleration checkpoints
0-60 mph
0-97 km/h
8.1 s
7.8 s
0-100 km/h
0-62 mph
8.6 s
8.3 s
0-200 km/h
0-124 mph
41.2 s
47.2 s
Top speed
227 km/h
141 mph
216 km/h
134 mph
Drag race simulation
60 ft
18 m
2.6 s
2.6 s
330 ft
101 m
7.0 s
6.9 s
1/8 mile
201 m
10.6 s
10.4 s
1000 ft
305 m
13.7 s
13.5 s
1/4 mile
402 m
16.2 s
16.0 s
Trap speed
1/4 mile
402 m
142 km/h
88 mph
142 km/h
88 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
170 hp
127 kW
BMWX1 (U11)20i
156 hp
116 kW

BMW 4 Series Gran Coupe (G26) 420i has 14 hp more than BMW X1 (U11) 20i.

The biggest power difference is between BMW X1 (U11) 20i and BMW 4 Series Gran Coupe (G26) 420i: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
250 Nm
184 lb-ft
BMWX1 (U11)20i
240 Nm
177 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)420i
1,620 kg
3,571 lb
BMWX1 (U11)20i
1,550 kg
3,417 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)420i
227 km/h
141 mph
BMWX1 (U11)20i
216 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 (G26)420i8.6 s
BMWX1 (U11)20i8.3 s

Although BMW 4 Series Gran Coupe (G26) 420i has more power, BMW X1 (U11) 20i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW X1 (U11) 20i and BMW 4 Series Gran Coupe (G26) 420i: 0.3 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)420i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
BMWX1 (U11)20i
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

The biggest fuel consumption difference is between BMW X1 (U11) 20i and BMW 4 Series Gran Coupe (G26) 420i: 1.5 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)420i
105 hp/t
78 kW/t
9.5 kg/hp
BMWX1 (U11)20i
101 hp/t
75 kW/t
9.9 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)420i
728 km
453 mi
BMWX1 (U11)20i
682 km
424 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Gran Coupe (G26)420i
170 hp
127 kW
8.6 s
227 km/h
141 mph
BMWX1 (U11)20i
156 hp
116 kW
8.3 s
216 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 (G26)420i
Power
170 hp
127 kW
0-100 km/h8.6 s
Top speed
227 km/h
141 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
BMWX1 (U11)20i
Power
156 hp
116 kW
0-100 km/h8.3 s
Top speed
216 km/h
134 mph
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,500 mm
177.2 in
Height
1,642 mm
64.6 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)420i
Power
170 hp
127 kW
0-100 km/h8.6 s
Top speed
227 km/h
141 mph
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
BMWX1 (U11)20i
Power
156 hp
116 kW
0-100 km/h8.3 s
Top speed
216 km/h
134 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

BMW 4 Series Gran Coupe (G26) 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 (G26)420i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
8.6 s
BMWX1 (U11)20i
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
8.3 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 Gran Coupe (G26)420i
105 hp/t
78 kW/t
9.5 kg/hp
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
BMWX1 (U11)20i
101 hp/t
75 kW/t
9.9 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Gran Coupe (G26)420iBMWX1 (U11)20i
Power
170 hp
127 kW
156 hp
116 kW
Torque
250 Nm
184 lb-ft
240 Nm
177 lb-ft
Acceleration
8.6 s
8.3 s
Top speed
227 km/h
141 mph
216 km/h
134 mph
Lightness
1,620 kg
3,571 lb
1,550 kg
3,417 lb
Fuel consumption
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 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
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,500 mm
177.2 in
Height
1,642 mm
64.6 in
Range score
728 km
453 mi
682 km
424 mi
Trunk score
470 L
16.6 cu ft
500 L
17.7 cu ft
Power-to-weight score
105 hp/t
78 kW/t
9.5 kg/hp
101 hp/t
75 kW/t
9.9 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 Gran Coupe (G26) 420iBMW X1 (U11) 20i
Consumption8.1 L/100 km29 mpg US34.9 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km14.17 LC100 km11.55 LC100 km
Cost / 100 mi22.81 LC100 mi18.59 LC100 mi
Annual fuel used1,215 L321 US gal267 UK gal990 L262 US gal218 UK gal
Annual fuel cost2,126 LC/year1,733 LC/year

Head-to-head comparisons

BMW 4 Series Gran Coupe (G26) 420i

  • Has 14 hp more
  • Has 10 Nm more
  • Has 11 km/h (7 mph) higher top speed
  • Has 4 hp/t better power-to-weight
  • Has 47 km (29 mi) more estimated range

Pros

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

Cons

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

BMW X1 (U11) 20i

  • Is 70 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 1.5 L/100 km less fuel
  • Has 30 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Gran Coupe (G26) 420i
BMW X1 (U11) 20i
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