Car comparison

BMW 6 Series (E63) 645CivsNissan 350Z (Z33) 3.5 i V6 24V

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

Nissan 350Z (Z33)

3.5 i V6 24V

313 hp3498 ccGasolineRWDManualNaturally aspiratedCoupe2006-2007

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
Most powerful
333 hp
248 kW
Highest torque
450 Nm
332 lb-ft
Lowest city consumption
16.1 L/100 km
14.6 mpg US
17.5 mpg UK
Lowest highway consumption
8.0 L/100 km
29.4 mpg US
35.3 mpg UK
Largest trunk
450 L
Best overall score
63/100
Best performance score
68/100
Best economy score
78/100
Best practicality score
53/100

Nissan 350Z (Z33) 3.5 i V6 24V

Lightest
1,545 kg
3,406 lb
Best power-to-weight
203 hp/t
151 kW/t
4.9 kg/hp

Specification comparison

Specification comparison
Model	BMW6 Series (E63)645Ci	Nissan350Z (Z33)3.5 i V6 24V
Power	333hp248kW	313hp233kW
Torque	450Nm332lb-ft	352Nm260lb-ft
Curb weight	1,695kg3,737lb	1,545kg3,406lb
Gross weight	2,065kg4,553lb	1,820kg4,012lb
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	80.2s99% target: 262 km/h / 163 mph Calculated	78.9s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	5.8s	5.8s
0-200 km/h	20.4s Calculated	20.2s Calculated
0-60 mph	5.5s Calculated	5.5s Calculated
Fuel consumption	10.9L/100 km21.6mpg US25.9mpg UK	-
Fuel consumption city	16.1L/100 km14.6mpg US17.5mpg UK	16.1L/100 km14.6mpg US17.5mpg UK
Fuel consumption highway	8L/100 km29.4mpg US35.3mpg UK	8.9L/100 km26.4mpg US31.7mpg UK
Quarter mile	13.9s Calculated	13.9s Calculated
Power-to-weight	196hp/t147kW/t89hp/1000 lb Calculated	203hp/t151kW/t92hp/1000 lb Calculated
Torque-to-weight	265Nm/t178lb-ft/ton Calculated	228Nm/t152lb-ft/ton Calculated
Estimated range	642km399mi Calculated	-
Displacement	4,398cc268cu in	3,498cc213cu in
Length	4,820mm190in	4,310mm170in
Width	1,855mm73in	1,816mm71in
Height	1,373mm54in	1,316mm52in
Wheelbase	2,780mm109in	2,650mm104in
Front track	1,558mm61in	1,534mm60in
Rear track	1,592mm63in	1,544mm61in
Trunk volume	450L	235L
Doors	2	2
Seats	4	2
Fuel tank	70L	80L
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) 645CiNissan 350Z (Z33) 3.5 i V6 24VPowerTorque

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
Nissan350Z (Z33)3.5 i V6 24V	6,400 rpm	4,800 rpm	6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series (E63)645Ci	Nissan350Z (Z33)3.5 i V6 24V
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.5 s	5.5 s
0-100 km/h 0-62 mph	5.8 s	5.8 s
0-200 km/h 0-124 mph	20.4 s	20.2 s
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.3 s
330 ft 101 m	6.1 s	6.1 s
1/8 mile 201 m	9.1 s	9.1 s
1000 ft 305 m	11.7 s	11.7 s
1/4 mile 402 m	13.9 s	13.9 s
Trap speed 1/4 mile 402 m	168 km/h 105 mph	169 km/h 105 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
Nissan350Z (Z33)3.5 i V6 24V	313 hp 233 kW

BMW 6 Series (E63) 645Ci has 20 hp more than Nissan 350Z (Z33) 3.5 i V6 24V.

The biggest power difference is between Nissan 350Z (Z33) 3.5 i V6 24V and BMW 6 Series (E63) 645Ci: 20 hp (15 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
Nissan350Z (Z33)3.5 i V6 24V	352 Nm 260 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
Nissan350Z (Z33)3.5 i V6 24V	1,545 kg 3,406 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
Nissan350Z (Z33)3.5 i V6 24V	Unrestricted 265 km/h165 mph Restricted 250 km/h155 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
Nissan350Z (Z33)3.5 i V6 24V	5.8 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
Nissan350Z (Z33)3.5 i V6 24V	203 hp/t 151 kW/t 4.9 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
Nissan350Z (Z33)3.5 i V6 24V	313 hp 233 kW	5.8 s	Unrestricted 265 km/h165 mph Restricted 250 km/h155 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

Nissan350Z (Z33)3.5 i V6 24V

Power	313 hp 233 kW
0-100 km/h	5.8 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 2 seats
Trunk	235 L 8.3 cu ft
Length	4,310 mm 169.7 in
Height	1,316 mm 51.8 in

Detailed score breakdown

Vehicle

BMW6 Series (E63)645Ci

Nissan350Z (Z33)3.5 i V6 24V

Power

333 hp

248 kW

313 hp

233 kW

Torque

450 Nm

332 lb-ft

352 Nm

260 lb-ft

Acceleration

5.8 s

Top speed

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Lightness

1,695 kg

3,737 lb

1,545 kg

3,406 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 2 seats
Trunk	235 L 8.3 cu ft
Length	4,310 mm 169.7 in
Height	1,316 mm 51.8 in

Range score

642 km

399 mi

CO2 score

264 g/km

Trunk score

450 L

15.9 cu ft

235 L

8.3 cu ft

Power-to-weight score

196 hp/t

147 kW/t

5.1 kg/hp

203 hp/t

151 kW/t

4.9 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