Car comparison

Mercedes-Benz GLS (X166) GLS 400vsCadillac XT5 3.6

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

New comparison

Mercedes-Benz GLS (X166)

GLS 400

333 hp2996 ccGasolineAWDAutomaticTwin-turboSUV2015-2019
VS

Cadillac XT5

3.6

314 hp3649 ccGasolineAWDAutomaticNaturally aspiratedSUV2016-2020

Comparison overview

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

Best choices

Mercedes-Benz GLS (X166) GLS 400

  • Quickest 0-100 km/h
    6.6 s
  • Fastest top speed
    240 km/h
    149 mph
  • Most powerful
    333 hp
    248 kW
  • Highest torque
    480 Nm
    354 lb-ft
  • Lowest combined fuel consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Lowest city consumption
    11.7 L/100 km
    20.1 mpg US
    24.1 mpg UK
  • Lowest CO2 emissions
    218 g/km
  • Best estimated range
    1,064 km
    661 mi
  • Best overall score
    71/100
  • Best performance score
    60/100
  • Best economy score
    82/100
  • Best practicality score
    93/100

Cadillac XT5 3.6

  • Lightest
    1,931 kg
    4,257 lb
  • Best power-to-weight
    163 hp/t
    121 kW/t
    6.1 kg/hp
  • Lowest highway consumption
    7.6 L/100 km
    30.9 mpg US
    37.2 mpg UK
  • Largest trunk
    850 L

Specification comparison

Specification comparison
ModelMercedes-BenzGLS (X166)GLS 400CadillacXT53.6
Power
333hp248kW
314hp234kW
Torque
480Nm354lb-ft
368Nm271lb-ft
Curb weight
2,360kg5,203lb
1,931kg4,257lb
Gross weight
3,250kg7,165lb
2,550kg5,622lb
Top speed
240 km/h
149 mph
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Calculated
To 99% top speed
93.1s99% target: 238 km/h / 148 mph
Calculated
78.5s99% target: 218 km/h / 135 mph
Calculated
0-100 km/h
6.6s
7.5s
0-200 km/h
29.1s
Calculated
36.9s
Calculated
0-60 mph
6.2s
Calculated
7.1s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
10L/100 km23.5mpg US28.2mpg UK
Fuel consumption city
11.7L/100 km20.1mpg US24.1mpg UK
14.1L/100 km16.7mpg US20.0mpg UK
Fuel consumption highway
8L/100 km29.4mpg US35.3mpg UK
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
14.7s
Calculated
15.4s
Calculated
Power-to-weight
141hp/t105kW/t64hp/1000 lb
Calculated
163hp/t121kW/t74hp/1000 lb
Calculated
Torque-to-weight
203Nm/t136lb-ft/ton
Calculated
191Nm/t128lb-ft/ton
Calculated
Estimated range
1,064km661mi
Calculated
830km516mi
Calculated
Displacement
2,996cc183cu in
3,649cc223cu in
Length
5,130mm202in
4,815mm190in
Width
1,934mm76in
1,903mm75in
Height
1,850mm73in
1,675mm66in
Wheelbase
3,075mm121in
2,857mm112in
Front track
1,655mm65in
1,638mm64in
Rear track
1,675mm66in
1,638mm64in
Ground clearance-
200mm8in
Trunk volume
680L
850L
Max trunk volume
2,300L
1,784L
Doors
5
5
Seats
5
5
Fuel tank
100L
83L
CO2 emissions
218g/km
229g/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.

Mercedes-Benz GLS (X166) GLS 400Cadillac XT5 3.6PowerTorque
  • Mercedes-Benz GLS (X166) GLS 400: Power / Torque
  • Cadillac XT5 3.6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzGLS (X166)GLS 4005,250-6,000 rpm1,600-4,000 rpm6,250 rpm
CadillacXT53.66,700 rpm5,000 rpm7,200 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzGLS (X166)GLS 400CadillacXT53.6
Acceleration checkpoints
0-60 mph
0-97 km/h
6.2 s
7.1 s
0-100 km/h
0-62 mph
6.6 s
7.5 s
0-200 km/h
0-124 mph
29.1 s
36.9 s
Top speed
240 km/h
149 mph
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.5 s
330 ft
101 m
6.3 s
6.7 s
1/8 mile
201 m
9.5 s
10.1 s
1000 ft
305 m
12.3 s
13.0 s
1/4 mile
402 m
14.7 s
15.4 s
Trap speed
1/4 mile
402 m
154 km/h
96 mph
149 km/h
93 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 400
333 hp
248 kW
CadillacXT53.6
314 hp
234 kW

Mercedes-Benz GLS (X166) GLS 400 has 19 hp more than Cadillac XT5 3.6.

The biggest power difference is between Cadillac XT5 3.6 and Mercedes-Benz GLS (X166) GLS 400: 19 hp (14 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 400
480 Nm
354 lb-ft
CadillacXT53.6
368 Nm
271 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 400
2,360 kg
5,203 lb
CadillacXT53.6
1,931 kg
4,257 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 (X166)GLS 400
240 km/h
149 mph
CadillacXT53.6
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 4006.6 s
CadillacXT53.67.5 s

The biggest 0-100 km/h difference is between Mercedes-Benz GLS (X166) GLS 400 and Cadillac XT5 3.6: 0.9 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 400
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
CadillacXT53.6
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz GLS (X166) GLS 400 and Cadillac XT5 3.6: 0.6 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
Mercedes-BenzGLS (X166)GLS 400
141 hp/t
105 kW/t
7.1 kg/hp
CadillacXT53.6
163 hp/t
121 kW/t
6.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzGLS (X166)GLS 400
1,064 km
661 mi
CadillacXT53.6
830 km
516 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzGLS (X166)GLS 400
333 hp
248 kW
6.6 s
240 km/h
149 mph
CadillacXT53.6
314 hp
234 kW
7.5 s
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 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 (X166)GLS 400
Power
333 hp
248 kW
0-100 km/h6.6 s
Top speed
240 km/h
149 mph
Doors/seats
5 doors
5 seats
Trunk
680 L
24.0 cu ft
Length
5,130 mm
202.0 in
Height
1,850 mm
72.8 in
CadillacXT53.6
Power
314 hp
234 kW
0-100 km/h7.5 s
Top speed
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Doors/seats
5 doors
5 seats
Trunk
850 L
30.0 cu ft
Length
4,815 mm
189.6 in
Height
1,675 mm
65.9 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
Mercedes-BenzGLS (X166)GLS 400
Power
333 hp
248 kW
0-100 km/h6.6 s
Top speed
240 km/h
149 mph
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
CadillacXT53.6
Power
314 hp
234 kW
0-100 km/h7.5 s
Top speed
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

Mercedes-Benz GLS (X166) GLS 400 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
Mercedes-BenzGLS (X166)GLS 400
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
6.6 s
CadillacXT53.6
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
7.5 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
Mercedes-BenzGLS (X166)GLS 400
141 hp/t
105 kW/t
7.1 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
CadillacXT53.6
163 hp/t
121 kW/t
6.1 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzGLS (X166)GLS 400CadillacXT53.6
Power
333 hp
248 kW
314 hp
234 kW
Torque
480 Nm
354 lb-ft
368 Nm
271 lb-ft
Acceleration
6.6 s
7.5 s
Top speed
240 km/h
149 mph
Unrestricted
220 km/h137 mph
Restricted
210 km/h130 mph
Lightness
2,360 kg
5,203 lb
1,931 kg
4,257 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
680 L
24.0 cu ft
Length
5,130 mm
202.0 in
Height
1,850 mm
72.8 in
Doors/seats
5 doors
5 seats
Trunk
850 L
30.0 cu ft
Length
4,815 mm
189.6 in
Height
1,675 mm
65.9 in
Range score
1,064 km
661 mi
830 km
516 mi
CO2 score
218 g/km
229 g/km
Trunk score
680 L
24.0 cu ft
850 L
30.0 cu ft
Power-to-weight score
141 hp/t
105 kW/t
7.1 kg/hp
163 hp/t
121 kW/t
6.1 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 (X166) GLS 400Cadillac XT5 3.6
Consumption9.4 L/100 km25 mpg US30.1 mpg UK10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km16.45 LC100 km17.50 LC100 km
Cost / 100 mi26.47 LC100 mi28.16 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal1,500 L396 US gal330 UK gal
Annual fuel cost2,468 LC/year2,625 LC/year

Head-to-head comparisons

Mercedes-Benz GLS (X166) GLS 400

  • Has 19 hp more
  • Has 112 Nm more
  • Is 0.9 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Uses 0.6 L/100 km less fuel
  • Has 234 km (145 mi) more estimated range
  • Emits 11 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 estimated range

Cons

  • Heaviest
  • Smallest trunk

Cadillac XT5 3.6

  • Is 429 kg lighter
  • Has 22 hp/t better power-to-weight
  • Has 170 L more trunk volume

Pros

  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

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

Choose cars to compare

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Model
Generation
Engine or modification
Mercedes-Benz GLS (X166) GLS 400
Cadillac XT5 3.6
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