Car comparison

Opel Insignia Sedan (A) 2.8 V6 TurbovsCadillac STS 3.6 i V6

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

New comparison

Opel Insignia Sedan (A)

2.8 V6 Turbo

260 hp2792 ccGasolineAWDAutomaticTurbochargedSedan2008-2013
VS

Cadillac STS

3.6 i V6

258 hp3564 ccGasolineRWDAutomaticNaturally aspiratedSedan2004-2011

Comparison overview

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

Best choices

Opel Insignia Sedan (A) 2.8 V6 Turbo

  • Quickest 0-100 km/h
    7.1 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    260 hp
    194 kW
  • Highest torque
    350 Nm
    258 lb-ft
  • Lowest combined fuel consumption
    11.6 L/100 km
    20.3 mpg US
    24.4 mpg UK
  • Lowest city consumption
    17.9 L/100 km
    13.1 mpg US
    15.8 mpg UK
  • Lowest highway consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Lowest CO2 emissions
    258 g/km
  • Best estimated range
    603 km
    375 mi
  • Largest trunk
    500 L
  • Best overall score
    63/100
  • Best performance score
    57/100
  • Best economy score
    76/100
  • Best practicality score
    76/100

Specification comparison

Specification comparison
ModelOpelInsignia Sedan (A)2.8 V6 TurboCadillacSTS3.6 i V6
Power
260hp194kW
258hp192kW
Torque
350Nm258lb-ft
346Nm255lb-ft
Curb weight
1,843kg4,063lb
1,782kg3,929lb
Gross weight
2,365kg5,214lb
-
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
229 km/h
142 mph
To 99% top speed
75.5s99% target: 257 km/h / 160 mph
Calculated
66.2s99% target: 227 km/h / 141 mph
Calculated
0-100 km/h
7.1s
7.4s
0-200 km/h
22.7s
Calculated
28.5s
Calculated
0-60 mph
6.8s
Calculated
7.0s
Calculated
Fuel consumption
11.6L/100 km20.3mpg US24.4mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Fuel consumption city
17.9L/100 km13.1mpg US15.8mpg UK
18.1L/100 km13mpg US15.6mpg UK
Fuel consumption highway
7.9L/100 km29.8mpg US35.8mpg UK
8.7L/100 km27mpg US32.5mpg UK
Quarter mile
15.0s
Calculated
15.3s
Calculated
Power-to-weight
141hp/t105kW/t64hp/1000 lb
Calculated
145hp/t108kW/t66hp/1000 lb
Calculated
Torque-to-weight
190Nm/t127lb-ft/ton
Calculated
194Nm/t130lb-ft/ton
Calculated
Estimated range
603km375mi
Calculated
541km336mi
Calculated
Displacement
2,792cc170cu in
3,564cc217cu in
Length
4,830mm190in
4,985mm196in
Width
1,858mm73in
1,843mm73in
Height
1,498mm59in
1,464mm58in
Wheelbase
2,737mm108in
2,957mm116in
Front track
1,585mm62in
1,596mm63in
Rear track
1,587mm62in
1,581mm62in
Ground clearance
160mm6in
-
Trunk volume
500L
464L
Max trunk volume
1,010L
-
Doors
4
4
Seats
5
5
Fuel tank
70L
66L
CO2 emissions
258g/km
285g/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.

Opel Insignia Sedan (A) 2.8 V6 TurboCadillac STS 3.6 i V6PowerTorque
  • Opel Insignia Sedan (A) 2.8 V6 Turbo: Power / Torque
  • Cadillac STS 3.6 i V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
OpelInsignia Sedan (A)2.8 V6 Turbo5,500 rpm1,900-4,500 rpm5,750 rpm
CadillacSTS3.6 i V66,200 rpm3,200 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricOpelInsignia Sedan (A)2.8 V6 TurboCadillacSTS3.6 i V6
Acceleration checkpoints
0-60 mph
0-97 km/h
6.8 s
7.0 s
0-100 km/h
0-62 mph
7.1 s
7.4 s
0-200 km/h
0-124 mph
22.7 s
28.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
229 km/h
142 mph
Drag race simulation
60 ft
18 m
2.7 s
2.7 s
330 ft
101 m
6.8 s
6.9 s
1/8 mile
201 m
10.0 s
10.2 s
1000 ft
305 m
12.7 s
13.0 s
1/4 mile
402 m
15.0 s
15.3 s
Trap speed
1/4 mile
402 m
163 km/h
101 mph
156 km/h
97 mph

Power comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo
260 hp
194 kW
CadillacSTS3.6 i V6
258 hp
192 kW

Opel Insignia Sedan (A) 2.8 V6 Turbo has 2 hp more than Cadillac STS 3.6 i V6.

The biggest power difference is between Cadillac STS 3.6 i V6 and Opel Insignia Sedan (A) 2.8 V6 Turbo: 2 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo
350 Nm
258 lb-ft
CadillacSTS3.6 i V6
346 Nm
255 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo
1,843 kg
4,063 lb
CadillacSTS3.6 i V6
1,782 kg
3,929 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
CadillacSTS3.6 i V6
229 km/h
142 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo7.1 s
CadillacSTS3.6 i V67.4 s

The biggest 0-100 km/h difference is between Opel Insignia Sedan (A) 2.8 V6 Turbo and Cadillac STS 3.6 i V6: 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
OpelInsignia Sedan (A)2.8 V6 Turbo
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
CadillacSTS3.6 i V6
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

The biggest fuel consumption difference is between Opel Insignia Sedan (A) 2.8 V6 Turbo and Cadillac STS 3.6 i V6: 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
OpelInsignia Sedan (A)2.8 V6 Turbo
141 hp/t
105 kW/t
7.1 kg/hp
CadillacSTS3.6 i V6
145 hp/t
108 kW/t
6.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
OpelInsignia Sedan (A)2.8 V6 Turbo
603 km
375 mi
CadillacSTS3.6 i V6
541 km
336 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
OpelInsignia Sedan (A)2.8 V6 Turbo
260 hp
194 kW
7.1 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
CadillacSTS3.6 i V6
258 hp
192 kW
7.4 s
229 km/h
142 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
OpelInsignia Sedan (A)2.8 V6 Turbo
Power
260 hp
194 kW
0-100 km/h7.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,830 mm
190.2 in
Height
1,498 mm
59.0 in
CadillacSTS3.6 i V6
Power
258 hp
192 kW
0-100 km/h7.4 s
Top speed
229 km/h
142 mph
Doors/seats
4 doors
5 seats
Trunk
464 L
16.4 cu ft
Length
4,985 mm
196.3 in
Height
1,464 mm
57.6 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
OpelInsignia Sedan (A)2.8 V6 Turbo
Power
260 hp
194 kW
0-100 km/h7.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
CadillacSTS3.6 i V6
Power
258 hp
192 kW
0-100 km/h7.4 s
Top speed
229 km/h
142 mph
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

Opel Insignia Sedan (A) 2.8 V6 Turbo 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
OpelInsignia Sedan (A)2.8 V6 Turbo
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
7.1 s
CadillacSTS3.6 i V6
12.2 L/100 km
19.3 mpg US
23.2 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
OpelInsignia Sedan (A)2.8 V6 Turbo
141 hp/t
105 kW/t
7.1 kg/hp
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
CadillacSTS3.6 i V6
145 hp/t
108 kW/t
6.9 kg/hp
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleOpelInsignia Sedan (A)2.8 V6 TurboCadillacSTS3.6 i V6
Power
260 hp
194 kW
258 hp
192 kW
Torque
350 Nm
258 lb-ft
346 Nm
255 lb-ft
Acceleration
7.1 s
7.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
229 km/h
142 mph
Lightness
1,843 kg
4,063 lb
1,782 kg
3,929 lb
Fuel consumption
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,830 mm
190.2 in
Height
1,498 mm
59.0 in
Doors/seats
4 doors
5 seats
Trunk
464 L
16.4 cu ft
Length
4,985 mm
196.3 in
Height
1,464 mm
57.6 in
Range score
603 km
375 mi
541 km
336 mi
CO2 score
258 g/km
285 g/km
Trunk score
500 L
17.7 cu ft
464 L
16.4 cu ft
Power-to-weight score
141 hp/t
105 kW/t
7.1 kg/hp
145 hp/t
108 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
VehicleOpel Insignia Sedan (A) 2.8 V6 TurboCadillac STS 3.6 i V6
Consumption11.6 L/100 km20.3 mpg US24.4 mpg UK12.2 L/100 km19.3 mpg US23.2 mpg UK
Cost / 100 km20.30 LC100 km21.35 LC100 km
Cost / 100 mi32.67 LC100 mi34.36 LC100 mi
Annual fuel used1,740 L460 US gal383 UK gal1,830 L483 US gal403 UK gal
Annual fuel cost3,045 LC/year3,203 LC/year

Head-to-head comparisons

Opel Insignia Sedan (A) 2.8 V6 Turbo

  • Has 2 hp more
  • Has 4 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 31 km/h (19 mph) higher top speed
  • Uses 0.6 L/100 km less fuel
  • Has 62 km (39 mi) more estimated range
  • Has 36 L more trunk volume
  • Emits 27 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
  • Largest trunk

Cons

  • Heaviest

Cadillac STS 3.6 i V6

  • Is 61 kg lighter
  • Has 4 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

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
Opel Insignia Sedan (A) 2.8 V6 Turbo
Cadillac STS 3.6 i V6
Compare selected cars
2 vehicles selected

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Opel Insignia Sedan (A) 2.8 V6 Turbo vs Cadillac STS 3.6 i V6 - car comparison - FastVsFaster