Car comparison

Mercedes-Benz GLS (X167) · Facelift 2023 GLS 580 V8vsKia EV9 GT 99.8 kWh

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

New comparison

Mercedes-Benz GLS (X167) · Facelift 2023

GLS 580 V8

517 hp3982 ccGasolineAWDAutomaticTwin-turboSUV2023-2026
VS

Kia EV9

GT 99.8 kWh

508 hpElectricAWDAutomaticSUV2025-present

Comparison overview

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

Best choices

Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    517 hp
    386 kW
  • Lightest
    2,565 kg
    5,655 lb
  • Best power-to-weight
    202 hp/t
    150 kW/t
    5.0 kg/hp
  • Best performance score
    79/100
  • Best economy score
    69/100

Kia EV9 GT 99.8 kWh

  • Quickest 0-100 km/h
    4.6 s
  • Highest torque
    740 Nm
    546 lb-ft
  • Largest trunk
    807 L
  • Best overall score
    83/100
  • Best practicality score
    93/100

Specification comparison

Specification comparison
ModelMercedes-BenzGLS (X167)Facelift 2023GLS 580 V8KiaEV9GT 99.8 kWh
Power
517hp386kW
508hp379kW
Torque
730Nm538lb-ft
740Nm546lb-ft
Curb weight
2,565kg5,655lb
2,648kg5,838lb
Gross weight
3,300kg7,275lb
3,240kg7,143lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 mph
Calculated
To 99% top speed
72.1s99% target: 257 km/h / 160 mph
Calculated
52.0s99% target: 228 km/h / 141 mph
Calculated
0-100 km/h
4.9s
4.6s
0-200 km/h
18.4s
Calculated
20.2s
Calculated
0-60 mph
4.6s
Calculated
4.4s
Calculated
Fuel consumption
14.2L/100 km16.6mpg US19.9mpg UK
-
Quarter mile
13.1s
Calculated
12.9s
Calculated
Power-to-weight
202hp/t150kW/t91hp/1000 lb
Calculated
192hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
285Nm/t190lb-ft/ton
Calculated
279Nm/t187lb-ft/ton
Calculated
Estimated range
634km394mi
Calculated
-
Displacement
3,982cc243cu in
-
Length
5,209mm205in
5,015mm197in
Width
1,956mm77in
1,980mm78in
Height
1,928mm76in
1,755mm69in
Wheelbase
3,135mm123in
3,100mm122in
Front track
1,669mm66in
1,692mm67in
Rear track
1,692mm67in
1,703mm67in
Ground clearance
290mm11in
177mm7in
Trunk volume
355L
807L
Max trunk volume
2,400L
2,318L
Doors
5
5
Seats
7
7
Fuel tank
90L
-

Performance charts

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

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzGLS (X167)Facelift 2023GLS 580 V8KiaEV9GT 99.8 kWh
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
4.4 s
0-100 km/h
0-62 mph
4.9 s
4.6 s
0-200 km/h
0-124 mph
18.4 s
20.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.0 s
330 ft
101 m
5.6 s
5.5 s
1/8 mile
201 m
8.5 s
8.3 s
1000 ft
305 m
11.0 s
10.8 s
1/4 mile
402 m
13.1 s
12.9 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
173 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
517 hp
386 kW
KiaEV9GT 99.8 kWh
508 hp
379 kW

Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8 has 9 hp more than Kia EV9 GT 99.8 kWh.

The biggest power difference is between Kia EV9 GT 99.8 kWh and Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8: 9 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
730 Nm
538 lb-ft
KiaEV9GT 99.8 kWh
740 Nm
546 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
2,565 kg
5,655 lb
KiaEV9GT 99.8 kWh
2,648 kg
5,838 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
KiaEV9GT 99.8 kWh
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V84.9 s
KiaEV9GT 99.8 kWh4.6 s

Although Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8 has more power, Kia EV9 GT 99.8 kWh is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Kia EV9 GT 99.8 kWh and Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8: 0.3 s.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
202 hp/t
150 kW/t
5.0 kg/hp
KiaEV9GT 99.8 kWh
192 hp/t
143 kW/t
5.2 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
517 hp
386 kW
4.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
KiaEV9GT 99.8 kWh
508 hp
379 kW
4.6 s
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 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
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
Power
517 hp
386 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
7 seats
Trunk
355 L
12.5 cu ft
Length
5,209 mm
205.1 in
Height
1,928 mm
75.9 in
KiaEV9GT 99.8 kWh
Power
508 hp
379 kW
0-100 km/h4.6 s
Top speed
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 mph
Doors/seats
5 doors
7 seats
Trunk
807 L
28.5 cu ft
Length
5,015 mm
197.4 in
Height
1,755 mm
69.1 in

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzGLS (X167)Facelift 2023GLS 580 V8KiaEV9GT 99.8 kWh
Power
517 hp
386 kW
508 hp
379 kW
Torque
730 Nm
538 lb-ft
740 Nm
546 lb-ft
Acceleration
4.9 s
4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
230 km/h143 mph
Restricted
220 km/h137 mph
Lightness
2,565 kg
5,655 lb
2,648 kg
5,838 lb
Fuel consumption
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
-
Practicality
Doors/seats
5 doors
7 seats
Trunk
355 L
12.5 cu ft
Length
5,209 mm
205.1 in
Height
1,928 mm
75.9 in
Doors/seats
5 doors
7 seats
Trunk
807 L
28.5 cu ft
Length
5,015 mm
197.4 in
Height
1,755 mm
69.1 in
Range score
634 km
394 mi
-
Trunk score
355 L
12.5 cu ft
807 L
28.5 cu ft
Power-to-weight score
202 hp/t
150 kW/t
5.0 kg/hp
192 hp/t
143 kW/t
5.2 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
VehicleMercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8
Consumption14.2 L/100 km16.6 mpg US19.9 mpg UK
Cost / 100 km24.85 LC100 km
Cost / 100 mi39.99 LC100 mi
Annual fuel used2,130 L563 US gal469 UK gal
Annual fuel cost3,728 LC/year

Head-to-head comparisons

Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8

  • Has 9 hp more
  • Is 83 kg lighter
  • Has 30 km/h (19 mph) higher top speed
  • Has 10 hp/t better power-to-weight

Pros

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

Cons

  • Slowest 0-100 km/h
  • Smallest trunk

Kia EV9 GT 99.8 kWh

  • Has 10 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 452 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Largest trunk

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz GLS (X167) GLS 580 V8
Kia EV9 GT 99.8 kWh
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Mercedes-Benz GLS (X167) · Facelift 2023 GLS 580 V8 vs Kia EV9 GT 99.8 kWh - car comparison - FastVsFaster