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 ccGasolineRWDAutomaticNaturally aspiratedCoupe2003-2005

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.

BMW 6 Series (E63) 645Ci

Quickest 0-100 km/h
5.8 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
78/100
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
Model	BMW6 Series (E63)645Ci	PontiacGTO5.7i V8 16V
Power	333hp248kW	344hp257kW
Torque	450Nm332lb-ft	488Nm360lb-ft
Curb weight	1,695kg3,737lb	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	79.6s99% target: 262 km/h / 163 mph Calculated	79.4s99% target: 254 km/h / 158 mph Calculated
0-100 km/h	5.8s	6.0s
0-200 km/h	20.3s Calculated	21.8s Calculated
0-60 mph	5.5s Calculated	5.7s Calculated
Fuel consumption	10.9L/100 km21.6mpg US25.9mpg UK	-
Fuel consumption city	16.1L/100 km14.6mpg US17.5mpg UK	-
Fuel consumption highway	8L/100 km29.4mpg US35.3mpg UK	-
Quarter mile	13.9s Calculated	14.1s Calculated
Power-to-weight	196hp/t147kW/t89hp/1000 lb Calculated	208hp/t155kW/t95hp/1000 lb Calculated
Torque-to-weight	265Nm/t178lb-ft/ton Calculated	296Nm/t198lb-ft/ton Calculated
Estimated range	642km399mi 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	264g/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

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW6 Series (E63)645Ci	6,100 rpm	3,600 rpm	6,350 rpm
PontiacGTO5.7i V8 16V	5,200 rpm	4,000 rpm	5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series (E63)645Ci	PontiacGTO5.7i V8 16V
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.5 s	5.7 s
0-100 km/h 0-62 mph	5.8 s	6.0 s
0-200 km/h 0-124 mph	20.3 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	6.1 s	6.2 s
1/8 mile 201 m	9.1 s	9.2 s
1000 ft 305 m	11.7 s	11.9 s
1/4 mile 402 m	13.9 s	14.1 s
Trap speed 1/4 mile 402 m	169 km/h 105 mph	165 km/h 103 mph

Power comparison

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

Chart data table
Vehicle	Value
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
Vehicle	Value
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
Vehicle	Value
BMW6 Series (E63)645Ci	1,695 kg 3,737 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
Vehicle	Value
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
Vehicle	Value
BMW6 Series (E63)645Ci	5.8 s
PontiacGTO5.7i V8 16V	6.0 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: 0.2 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series (E63)645Ci	196 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
Vehicle	Power	Acceleration	Top speed
BMW6 Series (E63)645Ci	333 hp 248 kW	5.8 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.

Vehicle

Performance score

Practicality score

BMW6 Series (E63)645Ci

Power	333 hp 248 kW
0-100 km/h	5.8 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/h	6.0 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

Vehicle

BMW6 Series (E63)645Ci

PontiacGTO5.7i V8 16V

Power

333 hp

248 kW

344 hp

257 kW

Torque

450 Nm

332 lb-ft

488 Nm

360 lb-ft

Acceleration

5.8 s

6.0 s

Top speed

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

257 km/h

160 mph

Lightness

1,695 kg

3,737 lb

1,650 kg

3,638 lb

Fuel consumption

10.9 L/100 km

21.6 mpg US

25.9 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

642 km

399 mi

CO2 score

264 g/km

Trunk score

450 L

15.9 cu ft

370 L

13.1 cu ft

Power-to-weight score

196 hp/t

147 kW/t

5.1 kg/hp

208 hp/t

155 kW/t

4.8 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	BMW 6 Series (E63) 645Ci
Consumption	10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km	19.08 LC100 km
Cost / 100 mi	30.70 LC100 mi
Annual fuel used	1,635 L432 US gal360 UK gal
Annual fuel cost	2,861 LC/year