Car comparison

BMW 7 Series (G11) 730dvsKia Optima IV GT 2.0 T-GDI

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

New comparison

BMW 7 Series (G11)

730d

265 hp2993 ccDieselRWDAutomaticTurbochargedSedan2015-2019
VS

Kia Optima IV

GT 2.0 T-GDI

245 hp1998 ccGasolineFWDAutomaticTwin-turboSedan2016-2018

Comparison overview

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

Best choices

BMW 7 Series (G11) 730d

  • Quickest 0-100 km/h
    6.1 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    265 hp
    198 kW
  • Highest torque
    620 Nm
    457 lb-ft
  • Best power-to-weight
    151 hp/t
    113 kW/t
    6.6 kg/hp
  • Lowest combined fuel consumption
    4.9 L/100 km
    48.0 mpg US
    57.6 mpg UK
  • Lowest city consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Lowest highway consumption
    4.4 L/100 km
    53.5 mpg US
    64.2 mpg UK
  • Lowest CO2 emissions
    129 g/km
  • Best estimated range
    1,592 km
    989 mi
  • Largest trunk
    515 L
  • Best overall score
    71/100
  • Best performance score
    68/100
  • Best economy score
    94/100
  • Best practicality score
    76/100

Specification comparison

Specification comparison
ModelBMW7 Series (G11)730dKiaOptima IVGT 2.0 T-GDI
Power
265hp198kW
245hp183kW
Torque
620Nm457lb-ft
353Nm260lb-ft
Curb weight
1,755kg3,869lb
1,680kg3,704lb
Gross weight
2,450kg5,401lb
2,120kg4,674lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
62.9s99% target: 262 km/h / 163 mph
Calculated
72.7s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
6.1s
7.4s
0-200 km/h
18.6s
Calculated
24.4s
Calculated
0-60 mph
5.8s
Calculated
7.1s
Calculated
Fuel consumption
4.9L/100 km48mpg US57.6mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
5.8L/100 km40.6mpg US48.7mpg UK
11.8L/100 km19.9mpg US23.9mpg UK
Fuel consumption highway
4.4L/100 km53.5mpg US64.2mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
14.0s
Calculated
15.2s
Calculated
Power-to-weight
151hp/t113kW/t68hp/1000 lb
Calculated
146hp/t109kW/t66hp/1000 lb
Calculated
Torque-to-weight
353Nm/t236lb-ft/ton
Calculated
210Nm/t141lb-ft/ton
Calculated
Estimated range
1,592km989mi
Calculated
854km530mi
Calculated
Displacement
2,993cc183cu in
1,998cc122cu in
Length
5,098mm201in
4,855mm191in
Width
1,902mm75in
1,860mm73in
Height
1,478mm58in
1,465mm58in
Wheelbase
3,070mm121in
2,805mm110in
Front track
1,618mm64in
1,597mm63in
Rear track
1,646mm65in
1,608mm63in
Ground clearance
135mm5in
-
Trunk volume
515L
510L
Doors
4
4
Seats
5
5
Fuel tank
78L
70L
CO2 emissions
129g/km
191g/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 7 Series (G11) 730dKia Optima IV GT 2.0 T-GDIPowerTorque
  • BMW 7 Series (G11) 730d: Power / Torque
  • Kia Optima IV GT 2.0 T-GDI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW7 Series (G11)730d4,000 rpm2,000-2,500 rpm4,250 rpm
KiaOptima IVGT 2.0 T-GDI6,000 rpm1,350-4,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW7 Series (G11)730dKiaOptima IVGT 2.0 T-GDI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
7.1 s
0-100 km/h
0-62 mph
6.1 s
7.4 s
0-200 km/h
0-124 mph
18.6 s
24.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.6 s
2.8 s
330 ft
101 m
6.4 s
6.9 s
1/8 mile
201 m
9.4 s
10.2 s
1000 ft
305 m
11.9 s
12.9 s
1/4 mile
402 m
14.0 s
15.2 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
160 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
265 hp
198 kW
KiaOptima IVGT 2.0 T-GDI
245 hp
183 kW

BMW 7 Series (G11) 730d has 20 hp more than Kia Optima IV GT 2.0 T-GDI.

The biggest power difference is between Kia Optima IV GT 2.0 T-GDI and BMW 7 Series (G11) 730d: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
620 Nm
457 lb-ft
KiaOptima IVGT 2.0 T-GDI
353 Nm
260 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
1,755 kg
3,869 lb
KiaOptima IVGT 2.0 T-GDI
1,680 kg
3,704 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
KiaOptima IVGT 2.0 T-GDI
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d6.1 s
KiaOptima IVGT 2.0 T-GDI7.4 s

The biggest 0-100 km/h difference is between BMW 7 Series (G11) 730d and Kia Optima IV GT 2.0 T-GDI: 1.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
KiaOptima IVGT 2.0 T-GDI
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between BMW 7 Series (G11) 730d and Kia Optima IV GT 2.0 T-GDI: 3.3 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
BMW7 Series (G11)730d
151 hp/t
113 kW/t
6.6 kg/hp
KiaOptima IVGT 2.0 T-GDI
146 hp/t
109 kW/t
6.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW7 Series (G11)730d
1,592 km
989 mi
KiaOptima IVGT 2.0 T-GDI
854 km
530 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW7 Series (G11)730d
265 hp
198 kW
6.1 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
KiaOptima IVGT 2.0 T-GDI
245 hp
183 kW
7.4 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 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
BMW7 Series (G11)730d
Power
265 hp
198 kW
0-100 km/h6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
515 L
18.2 cu ft
Length
5,098 mm
200.7 in
Height
1,478 mm
58.2 in
KiaOptima IVGT 2.0 T-GDI
Power
245 hp
183 kW
0-100 km/h7.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
4,855 mm
191.1 in
Height
1,465 mm
57.7 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
BMW7 Series (G11)730d
Power
265 hp
198 kW
0-100 km/h6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
KiaOptima IVGT 2.0 T-GDI
Power
245 hp
183 kW
0-100 km/h7.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

BMW 7 Series (G11) 730d 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
BMW7 Series (G11)730d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
6.1 s
KiaOptima IVGT 2.0 T-GDI
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
7.4 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
BMW7 Series (G11)730d
151 hp/t
113 kW/t
6.6 kg/hp
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
KiaOptima IVGT 2.0 T-GDI
146 hp/t
109 kW/t
6.9 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW7 Series (G11)730dKiaOptima IVGT 2.0 T-GDI
Power
265 hp
198 kW
245 hp
183 kW
Torque
620 Nm
457 lb-ft
353 Nm
260 lb-ft
Acceleration
6.1 s
7.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Lightness
1,755 kg
3,869 lb
1,680 kg
3,704 lb
Fuel consumption
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
515 L
18.2 cu ft
Length
5,098 mm
200.7 in
Height
1,478 mm
58.2 in
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
4,855 mm
191.1 in
Height
1,465 mm
57.7 in
Range score
1,592 km
989 mi
854 km
530 mi
CO2 score
129 g/km
191 g/km
Trunk score
515 L
18.2 cu ft
510 L
18.0 cu ft
Power-to-weight score
151 hp/t
113 kW/t
6.6 kg/hp
146 hp/t
109 kW/t
6.9 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 7 Series (G11) 730dKia Optima IV GT 2.0 T-GDI
Consumption4.9 L/100 km48 mpg US57.6 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km8.58 LC100 km14.35 LC100 km
Cost / 100 mi13.80 LC100 mi23.09 LC100 mi
Annual fuel used735 L194 US gal162 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost1,286 LC/year2,153 LC/year

Head-to-head comparisons

BMW 7 Series (G11) 730d

  • Has 20 hp more
  • Has 267 Nm more
  • Is 1.3 s quicker from 0-100 km/h
  • Has 15 km/h (9 mph) higher top speed
  • Uses 3.3 L/100 km less fuel
  • Has 5 hp/t better power-to-weight
  • Has 738 km (459 mi) more estimated range
  • Has 5 L more trunk volume
  • Emits 62 g/km less CO2

Pros

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

Cons

  • Heaviest

Kia Optima IV GT 2.0 T-GDI

  • Is 75 kg lighter

Pros

  • Lightest

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 7 Series (G11) 730d
Kia Optima IV GT 2.0 T-GDI
Compare selected cars
2 vehicles selected

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