Car comparison

Cadillac STS 4.6 i V8vsCadillac BLS 2.8 T V6

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

New comparison

Cadillac STS

4.6 i V8

325 hp4565 ccGasolineRWDAutomaticNaturally aspiratedSedan2004-2011
VS

Cadillac BLS

2.8 T V6

255 hp2792 ccGasolineFWDAutomaticTurbochargedSedan2006-2010

Comparison overview

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

Best choices

Cadillac STS 4.6 i V8

  • Quickest 0-100 km/h
    6.2 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    325 hp
    242 kW
  • Highest torque
    420 Nm
    310 lb-ft
  • Best power-to-weight
    183 hp/t
    136 kW/t
    5.5 kg/hp
  • Largest trunk
    464 L
  • Best overall score
    68/100
  • Best performance score
    65/100
  • Best practicality score
    74/100

Cadillac BLS 2.8 T V6

  • Lightest
    1,585 kg
    3,494 lb
  • Lowest combined fuel consumption
    10.8 L/100 km
    21.8 mpg US
    26.2 mpg UK
  • Lowest city consumption
    16.9 L/100 km
    13.9 mpg US
    16.7 mpg UK
  • Lowest highway consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest CO2 emissions
    259 g/km
  • Best estimated range
    537 km
    334 mi
  • Best economy score
    78/100

Specification comparison

Specification comparison
ModelCadillacSTS4.6 i V8CadillacBLS2.8 T V6
Power
325hp242kW
255hp190kW
Torque
420Nm310lb-ft
365Nm269lb-ft
Curb weight
1,780kg3,924lb
1,585kg3,494lb
Gross weight-
2,100kg4,630lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
245 km/h
152 mph
To 99% top speed
64.0s99% target: 262 km/h / 163 mph
Calculated
70.0s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
6.2s
7.5s
0-200 km/h
18.9s
Calculated
25.1s
Calculated
0-60 mph
5.9s
Calculated
7.2s
Calculated
Fuel consumption
14.4L/100 km16.3mpg US19.6mpg UK
10.8L/100 km21.8mpg US26.2mpg UK
Fuel consumption city
19.2L/100 km12.3mpg US14.7mpg UK
16.9L/100 km13.9mpg US16.7mpg UK
Fuel consumption highway
11.7L/100 km20.1mpg US24.1mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
14.1s
Calculated
15.3s
Calculated
Power-to-weight
183hp/t136kW/t83hp/1000 lb
Calculated
161hp/t120kW/t73hp/1000 lb
Calculated
Torque-to-weight
236Nm/t158lb-ft/ton
Calculated
230Nm/t154lb-ft/ton
Calculated
Estimated range
458km285mi
Calculated
537km334mi
Calculated
Displacement
4,565cc279cu in
2,792cc170cu in
Length
4,985mm196in
4,680mm184in
Width
1,843mm73in
1,752mm69in
Height
1,464mm58in
1,471mm58in
Wheelbase
2,957mm116in
2,675mm105in
Front track
1,596mm63in
1,524mm60in
Rear track
1,581mm62in
1,506mm59in
Ground clearance-
127mm5in
Trunk volume
464L
425L
Doors
4
4
Seats
5
5
Fuel tank
66L
58L
CO2 emissions
343g/km
259g/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.

Cadillac STS 4.6 i V8Cadillac BLS 2.8 T V6PowerTorque
  • Cadillac STS 4.6 i V8: Power / Torque
  • Cadillac BLS 2.8 T V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
CadillacSTS4.6 i V86,400 rpm4,400 rpm6,650 rpm
CadillacBLS2.8 T V65,500 rpm1,800-4,500 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricCadillacSTS4.6 i V8CadillacBLS2.8 T V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.9 s
7.2 s
0-100 km/h
0-62 mph
6.2 s
7.5 s
0-200 km/h
0-124 mph
18.9 s
25.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
245 km/h
152 mph
Drag race simulation
60 ft
18 m
2.6 s
2.8 s
330 ft
101 m
6.4 s
7.0 s
1/8 mile
201 m
9.5 s
10.3 s
1000 ft
305 m
12.0 s
13.0 s
1/4 mile
402 m
14.1 s
15.3 s
Trap speed
1/4 mile
402 m
173 km/h
107 mph
159 km/h
99 mph

Power comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V8
325 hp
242 kW
CadillacBLS2.8 T V6
255 hp
190 kW

Cadillac STS 4.6 i V8 has 70 hp more than Cadillac BLS 2.8 T V6.

The biggest power difference is between Cadillac BLS 2.8 T V6 and Cadillac STS 4.6 i V8: 70 hp (52 kW).

Torque comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V8
420 Nm
310 lb-ft
CadillacBLS2.8 T V6
365 Nm
269 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V8
1,780 kg
3,924 lb
CadillacBLS2.8 T V6
1,585 kg
3,494 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V8
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
CadillacBLS2.8 T V6
245 km/h
152 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V86.2 s
CadillacBLS2.8 T V67.5 s

The biggest 0-100 km/h difference is between Cadillac STS 4.6 i V8 and Cadillac BLS 2.8 T V6: 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
CadillacSTS4.6 i V8
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
CadillacBLS2.8 T V6
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

The biggest fuel consumption difference is between Cadillac BLS 2.8 T V6 and Cadillac STS 4.6 i V8: 3.6 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
CadillacSTS4.6 i V8
183 hp/t
136 kW/t
5.5 kg/hp
CadillacBLS2.8 T V6
161 hp/t
120 kW/t
6.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
CadillacSTS4.6 i V8
458 km
285 mi
CadillacBLS2.8 T V6
537 km
334 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
CadillacSTS4.6 i V8
325 hp
242 kW
6.2 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
CadillacBLS2.8 T V6
255 hp
190 kW
7.5 s
245 km/h
152 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
CadillacSTS4.6 i V8
Power
325 hp
242 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 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
CadillacBLS2.8 T V6
Power
255 hp
190 kW
0-100 km/h7.5 s
Top speed
245 km/h
152 mph
Doors/seats
4 doors
5 seats
Trunk
425 L
15.0 cu ft
Length
4,680 mm
184.3 in
Height
1,471 mm
57.9 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
CadillacSTS4.6 i V8
Power
325 hp
242 kW
0-100 km/h6.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
CadillacBLS2.8 T V6
Power
255 hp
190 kW
0-100 km/h7.5 s
Top speed
245 km/h
152 mph
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Cadillac STS 4.6 i V8 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
CadillacSTS4.6 i V8
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
6.2 s
CadillacBLS2.8 T V6
10.8 L/100 km
21.8 mpg US
26.2 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
CadillacSTS4.6 i V8
183 hp/t
136 kW/t
5.5 kg/hp
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
CadillacBLS2.8 T V6
161 hp/t
120 kW/t
6.2 kg/hp
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleCadillacSTS4.6 i V8CadillacBLS2.8 T V6
Power
325 hp
242 kW
255 hp
190 kW
Torque
420 Nm
310 lb-ft
365 Nm
269 lb-ft
Acceleration
6.2 s
7.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
245 km/h
152 mph
Lightness
1,780 kg
3,924 lb
1,585 kg
3,494 lb
Fuel consumption
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
Practicality
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
Doors/seats
4 doors
5 seats
Trunk
425 L
15.0 cu ft
Length
4,680 mm
184.3 in
Height
1,471 mm
57.9 in
Range score
458 km
285 mi
537 km
334 mi
CO2 score
343 g/km
259 g/km
Trunk score
464 L
16.4 cu ft
425 L
15.0 cu ft
Power-to-weight score
183 hp/t
136 kW/t
5.5 kg/hp
161 hp/t
120 kW/t
6.2 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
VehicleCadillac STS 4.6 i V8Cadillac BLS 2.8 T V6
Consumption14.4 L/100 km16.3 mpg US19.6 mpg UK10.8 L/100 km21.8 mpg US26.2 mpg UK
Cost / 100 km25.20 LC100 km18.90 LC100 km
Cost / 100 mi40.56 LC100 mi30.42 LC100 mi
Annual fuel used2,160 L571 US gal475 UK gal1,620 L428 US gal356 UK gal
Annual fuel cost3,780 LC/year2,835 LC/year

Head-to-head comparisons

Cadillac STS 4.6 i V8

  • Has 70 hp more
  • Has 55 Nm more
  • Is 1.3 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Has 22 hp/t better power-to-weight
  • Has 39 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

Cadillac BLS 2.8 T V6

  • Is 195 kg lighter
  • Uses 3.6 L/100 km less fuel
  • Has 79 km (49 mi) more estimated range
  • Emits 84 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Cadillac STS 4.6 i V8
Cadillac BLS 2.8 T V6
Compare selected cars
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