Car comparison

BMW 6 Series (E63) 645CivsPontiac GTO 5.7i V8 16V

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

New comparison

BMW 6 Series (E63)

645Ci

333 hp4398 ccGasolineRWDManualNaturally aspiratedCoupe2003-2005
VS

Pontiac GTO

5.7i V8 16V

344 hp5665 ccGasolineRWDManualNaturally aspiratedCoupe2004-2005

Comparison overview

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

Best choices

BMW 6 Series (E63) 645Ci

  • Quickest 0-100 km/h
    5.6 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Largest trunk
    450 L
  • Best overall score
    63/100
  • Best performance score
    68/100
  • Best economy score
    75/100
  • Best practicality score
    53/100

Pontiac GTO 5.7i V8 16V

  • Most powerful
    344 hp
    257 kW
  • Highest torque
    488 Nm
    360 lb-ft
  • Lightest
    1,650 kg
    3,638 lb
  • Best power-to-weight
    208 hp/t
    155 kW/t
    4.8 kg/hp

Specification comparison

Specification comparison
ModelBMW6 Series (E63)645CiPontiacGTO5.7i V8 16V
Power
333hp248kW
344hp257kW
Torque
450Nm332lb-ft
488Nm360lb-ft
Curb weight
1,690kg3,726lb
1,650kg3,638lb
Gross weight
2,065kg4,553lb
-
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
257 km/h
160 mph
To 99% top speed
76.8s99% target: 262 km/h / 163 mph
Calculated
79.4s99% target: 254 km/h / 158 mph
Calculated
0-100 km/h
5.6s
6.0s
0-200 km/h
19.6s
Calculated
21.8s
Calculated
0-60 mph
5.3s
Calculated
5.7s
Calculated
Fuel consumption
11.7L/100 km20.1mpg US24.1mpg UK
-
Fuel consumption city
17.2L/100 km13.7mpg US16.4mpg UK
-
Fuel consumption highway
8.6L/100 km27.4mpg US32.8mpg UK
-
Quarter mile
13.7s
Calculated
14.1s
Calculated
Power-to-weight
197hp/t147kW/t89hp/1000 lb
Calculated
208hp/t155kW/t95hp/1000 lb
Calculated
Torque-to-weight
266Nm/t178lb-ft/ton
Calculated
296Nm/t198lb-ft/ton
Calculated
Estimated range
598km372mi
Calculated
-
Displacement
4,398cc268cu in
5,665cc346cu in
Length
4,820mm190in
4,800mm189in
Width
1,855mm73in
1,840mm72in
Height
1,373mm54in
1,400mm55in
Wheelbase
2,780mm109in
2,788mm110in
Front track
1,558mm61in
1,559mm61in
Rear track
1,592mm63in
1,577mm62in
Trunk volume
450L
370L
Doors
2
2
Seats
4
4
Fuel tank
70L
75L
CO2 emissions
283g/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 6 Series (E63) 645CiPontiac GTO 5.7i V8 16VPowerTorque
  • BMW 6 Series (E63) 645Ci: Power / Torque
  • Pontiac GTO 5.7i V8 16V: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series (E63)645Ci6,100 rpm3,600 rpm6,350 rpm
PontiacGTO5.7i V8 16V5,200 rpm4,000 rpm5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series (E63)645CiPontiacGTO5.7i V8 16V
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.7 s
0-100 km/h
0-62 mph
5.6 s
6.0 s
0-200 km/h
0-124 mph
19.6 s
21.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
257 km/h
160 mph
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.0 s
6.2 s
1/8 mile
201 m
9.0 s
9.2 s
1000 ft
305 m
11.6 s
11.9 s
1/4 mile
402 m
13.7 s
14.1 s
Trap speed
1/4 mile
402 m
170 km/h
106 mph
165 km/h
103 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci
333 hp
248 kW
PontiacGTO5.7i V8 16V
344 hp
257 kW

Pontiac GTO 5.7i V8 16V has 11 hp more than BMW 6 Series (E63) 645Ci.

The biggest power difference is between BMW 6 Series (E63) 645Ci and Pontiac GTO 5.7i V8 16V: 11 hp (8 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci
450 Nm
332 lb-ft
PontiacGTO5.7i V8 16V
488 Nm
360 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci
1,690 kg
3,726 lb
PontiacGTO5.7i V8 16V
1,650 kg
3,638 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
PontiacGTO5.7i V8 16V
257 km/h
160 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci5.6 s
PontiacGTO5.7i V8 16V6.0 s

Although Pontiac GTO 5.7i V8 16V has more power, BMW 6 Series (E63) 645Ci is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 6 Series (E63) 645Ci and Pontiac GTO 5.7i V8 16V: 0.4 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)645Ci
197 hp/t
147 kW/t
5.1 kg/hp
PontiacGTO5.7i V8 16V
208 hp/t
155 kW/t
4.8 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series (E63)645Ci
333 hp
248 kW
5.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
PontiacGTO5.7i V8 16V
344 hp
257 kW
6.0 s
257 km/h
160 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
BMW6 Series (E63)645Ci
Power
333 hp
248 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
PontiacGTO5.7i V8 16V
Power
344 hp
257 kW
0-100 km/h6.0 s
Top speed
257 km/h
160 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,800 mm
189.0 in
Height
1,400 mm
55.1 in

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series (E63)645CiPontiacGTO5.7i V8 16V
Power
333 hp
248 kW
344 hp
257 kW
Torque
450 Nm
332 lb-ft
488 Nm
360 lb-ft
Acceleration
5.6 s
6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
257 km/h
160 mph
Lightness
1,690 kg
3,726 lb
1,650 kg
3,638 lb
Fuel consumption
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
-
Practicality
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,800 mm
189.0 in
Height
1,400 mm
55.1 in
Range score
598 km
372 mi
-
CO2 score
283 g/km
-
Trunk score
450 L
15.9 cu ft
370 L
13.1 cu ft
Power-to-weight score
197 hp/t
147 kW/t
5.1 kg/hp
208 hp/t
155 kW/t
4.8 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 6 Series (E63) 645Ci
Consumption11.7 L/100 km20.1 mpg US24.1 mpg UK
Cost / 100 km20.47 LC100 km
Cost / 100 mi32.95 LC100 mi
Annual fuel used1,755 L464 US gal386 UK gal
Annual fuel cost3,071 LC/year

Head-to-head comparisons

BMW 6 Series (E63) 645Ci

  • Is 0.4 s quicker from 0-100 km/h
  • Has 8 km/h (5 mph) higher top speed
  • Has 80 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Heaviest

Pontiac GTO 5.7i V8 16V

  • Has 11 hp more
  • Has 38 Nm more
  • Is 40 kg lighter
  • Has 11 hp/t better power-to-weight

Pros

  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series (E63) 645Ci
Pontiac GTO 5.7i V8 16V
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