Car comparison

BMW 6 Series Convertible (E64) 630ivsAlfa Romeo Spider (916) · Facelift 2003 3.2 V6

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

New comparison

BMW 6 Series Convertible (E64)

630i

258 hp2996 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2004-2007

Alfa Romeo Spider (916) · Facelift 2003

3.2 V6

240 hp3179 ccGasolineFWDManualNaturally aspiratedCabriolet / convertible2003-2004

Comparison overview

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

BMW 6 Series Convertible (E64) 630i

Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
258 hp
192 kW
Highest torque
300 Nm
221 lb-ft
Lowest combined fuel consumption
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Lowest city consumption
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
Lowest highway consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Best estimated range
729 km
453 mi
Largest trunk
300 L
Best overall score
53/100
Best performance score
57/100
Best economy score
81/100
Best practicality score
45/100

Alfa Romeo Spider (916) Facelift 2003 3.2 V6

Quickest 0-100 km/h
6.3 s
Lightest
1,470 kg
3,241 lb
Best power-to-weight
163 hp/t
122 kW/t
6.1 kg/hp

Specification comparison

Specification comparison
Model	BMW6 Series Convertible (E64)630i	Alfa RomeoSpider (916)Facelift 20033.2 V6
Power	258hp192kW	240hp179kW
Torque	300Nm221lb-ft	289Nm213lb-ft
Curb weight	1,685kg3,715lb	1,470kg3,241lb
Gross weight	2,085kg4,597lb	1,730kg3,814lb
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	242 km/h 150 mph
To 99% top speed	101.6s99% target: 257 km/h / 160 mph Calculated	84.5s99% target: 240 km/h / 149 mph Calculated
0-100 km/h	6.9s	6.3s
0-200 km/h	25.9s Calculated	26.4s Calculated
0-60 mph	6.5s Calculated	6.0s Calculated
Fuel consumption	9.6L/100 km24.5mpg US29.4mpg UK	13.2L/100 km17.8mpg US21.4mpg UK
Fuel consumption city	13.6L/100 km17.3mpg US20.8mpg UK	19.9L/100 km11.8mpg US14.2mpg UK
Fuel consumption highway	7.3L/100 km32.2mpg US38.7mpg UK	9.3L/100 km25.3mpg US30.4mpg UK
Quarter mile	14.9s Calculated	14.4s Calculated
Power-to-weight	153hp/t114kW/t69hp/1000 lb Calculated	163hp/t122kW/t74hp/1000 lb Calculated
Torque-to-weight	178Nm/t119lb-ft/ton Calculated	197Nm/t132lb-ft/ton Calculated
Estimated range	729km453mi Calculated	530km330mi Calculated
Displacement	2,996cc183cu in	3,179cc194cu in
Length	4,820mm190in	4,299mm169in
Width	1,855mm73in	1,776mm70in
Height	1,373mm54in	1,315mm52in
Wheelbase	2,780mm109in	2,540mm100in
Front track	1,558mm61in	1,530mm60in
Rear track	1,596mm63in	1,508mm59in
Trunk volume	300L	147L
Max trunk volume	350L	-
Doors	2	2
Seats	4	2
Fuel tank	70L	70L

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 Convertible (E64) 630iAlfa Romeo Spider (916) Facelift 2003 3.2 V6PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW6 Series Convertible (E64)630i	6,600 rpm	2,500 rpm	6,850 rpm
Alfa RomeoSpider (916)Facelift 20033.2 V6	6,200 rpm	4,800 rpm	6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series Convertible (E64)630i	Alfa RomeoSpider (916)Facelift 20033.2 V6
	Acceleration checkpoints
0-60 mph 0-97 km/h	6.5 s	6.0 s
0-100 km/h 0-62 mph	6.9 s	6.3 s
0-200 km/h 0-124 mph	25.9 s	26.4 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited	242 km/h 150 mph
	Drag race simulation
60 ft 18 m	2.4 s	2.3 s
330 ft 101 m	6.5 s	6.2 s
1/8 mile 201 m	9.7 s	9.4 s
1000 ft 305 m	12.5 s	12.1 s
1/4 mile 402 m	14.9 s	14.4 s
Trap speed 1/4 mile 402 m	157 km/h 97 mph	158 km/h 98 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)630i	258 hp 192 kW
Alfa RomeoSpider (916)Facelift 20033.2 V6	240 hp 179 kW

BMW 6 Series Convertible (E64) 630i has 18 hp more than Alfa Romeo Spider (916) Facelift 2003 3.2 V6.

The biggest power difference is between Alfa Romeo Spider (916) Facelift 2003 3.2 V6 and BMW 6 Series Convertible (E64) 630i: 18 hp (13 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)630i	300 Nm 221 lb-ft
Alfa RomeoSpider (916)Facelift 20033.2 V6	289 Nm 213 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)630i	1,685 kg 3,715 lb
Alfa RomeoSpider (916)Facelift 20033.2 V6	1,470 kg 3,241 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 Convertible (E64)630i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
Alfa RomeoSpider (916)Facelift 20033.2 V6	242 km/h 150 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 Convertible (E64)630i	6.9 s
Alfa RomeoSpider (916)Facelift 20033.2 V6	6.3 s

Although BMW 6 Series Convertible (E64) 630i has more power, Alfa Romeo Spider (916) Facelift 2003 3.2 V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Alfa Romeo Spider (916) Facelift 2003 3.2 V6 and BMW 6 Series Convertible (E64) 630i: 0.6 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)630i	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
Alfa RomeoSpider (916)Facelift 20033.2 V6	13.2 L/100 km 17.8 mpg US 21.4 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (E64) 630i and Alfa Romeo Spider (916) Facelift 2003 3.2 V6: 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
Vehicle	Value
BMW6 Series Convertible (E64)630i	153 hp/t 114 kW/t 6.5 kg/hp
Alfa RomeoSpider (916)Facelift 20033.2 V6	163 hp/t 122 kW/t 6.1 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)630i	729 km 453 mi
Alfa RomeoSpider (916)Facelift 20033.2 V6	530 km 330 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW6 Series Convertible (E64)630i	258 hp 192 kW	6.9 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
Alfa RomeoSpider (916)Facelift 20033.2 V6	240 hp 179 kW	6.3 s	242 km/h 150 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 Convertible (E64)630i

Power	258 hp 192 kW
0-100 km/h	6.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,820 mm 189.8 in
Height	1,373 mm 54.1 in

Alfa RomeoSpider (916)Facelift 20033.2 V6

Power	240 hp 179 kW
0-100 km/h	6.3 s
Top speed 242 km/h 150 mph

Doors/seats	2 doors 2 seats
Trunk	147 L 5.2 cu ft
Length	4,299 mm 169.3 in
Height	1,315 mm 51.8 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

BMW6 Series Convertible (E64)630i

Power	258 hp 192 kW
0-100 km/h	6.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

Alfa RomeoSpider (916)Facelift 20033.2 V6

Power	240 hp 179 kW
0-100 km/h	6.3 s
Top speed 242 km/h 150 mph

13.2 L/100 km

17.8 mpg US

21.4 mpg UK

BMW 6 Series Convertible (E64) 630i 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
BMW6 Series Convertible (E64)630i	9.6 L/100 km 24.5 mpg US 29.4 mpg UK	6.9 s
Alfa RomeoSpider (916)Facelift 20033.2 V6	13.2 L/100 km 17.8 mpg US 21.4 mpg UK	6.3 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
BMW6 Series Convertible (E64)630i	153 hp/t 114 kW/t 6.5 kg/hp	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
Alfa RomeoSpider (916)Facelift 20033.2 V6	163 hp/t 122 kW/t 6.1 kg/hp	13.2 L/100 km 17.8 mpg US 21.4 mpg UK

Detailed score breakdown

Vehicle

BMW6 Series Convertible (E64)630i

Alfa RomeoSpider (916)Facelift 20033.2 V6

Power

258 hp

192 kW

240 hp

179 kW

Torque

300 Nm

221 lb-ft

289 Nm

213 lb-ft

Acceleration

6.9 s

6.3 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

242 km/h

150 mph

Lightness

1,685 kg

3,715 lb

1,470 kg

3,241 lb

Fuel consumption

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

13.2 L/100 km

17.8 mpg US

21.4 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,820 mm 189.8 in
Height	1,373 mm 54.1 in

Doors/seats	2 doors 2 seats
Trunk	147 L 5.2 cu ft
Length	4,299 mm 169.3 in
Height	1,315 mm 51.8 in

Range score

729 km

453 mi

530 km

330 mi

Trunk score

300 L

10.6 cu ft

147 L

5.2 cu ft

Power-to-weight score

153 hp/t

114 kW/t

6.5 kg/hp

163 hp/t

122 kW/t

6.1 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 Convertible (E64) 630i	Alfa Romeo Spider (916) Facelift 2003 3.2 V6
Consumption	9.6 L/100 km24.5 mpg US29.4 mpg UK	13.2 L/100 km17.8 mpg US21.4 mpg UK
Cost / 100 km	16.80 LC100 km	23.10 LC100 km
Cost / 100 mi	27.04 LC100 mi	37.18 LC100 mi
Annual fuel used	1,440 L380 US gal317 UK gal	1,980 L523 US gal436 UK gal
Annual fuel cost	2,520 LC/year	3,465 LC/year