Car comparison

BMW 3 Series Convertible (E46) 330CivsAlfa 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 3 Series Convertible (E46)

330Ci

231 hp2979 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2000-2003

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 3 Series Convertible (E46) 330Ci

Fastest top speed
247 km/h
153 mph
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
13.4 L/100 km
17.6 mpg US
21.1 mpg UK
Lowest highway consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Best estimated range
656 km
408 mi
Largest trunk
260 L
Best overall score
51/100
Best economy score
81/100
Best practicality score
43/100

Alfa Romeo Spider (916) Facelift 2003 3.2 V6

Quickest 0-100 km/h
6.3 s
Most powerful
240 hp
179 kW
Lightest
1,470 kg
3,241 lb
Best power-to-weight
163 hp/t
122 kW/t
6.1 kg/hp
Best performance score
56/100

Specification comparison

Specification comparison
Model	BMW3 Series Convertible (E46)330Ci	Alfa RomeoSpider (916)Facelift 20033.2 V6
Power	231hp172kW	240hp179kW
Torque	300Nm221lb-ft	289Nm213lb-ft
Curb weight	1,645kg3,627lb	1,470kg3,241lb
Gross weight	2,045kg4,508lb	1,730kg3,814lb
Top speed	247 km/h 153 mph	242 km/h 150 mph
To 99% top speed	93.3s99% target: 245 km/h / 152 mph Calculated	84.5s99% target: 240 km/h / 149 mph Calculated
0-100 km/h	6.9s	6.3s
0-200 km/h	27.6s 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	13.4L/100 km17.6mpg US21.1mpg 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	140hp/t105kW/t64hp/1000 lb Calculated	163hp/t122kW/t74hp/1000 lb Calculated
Torque-to-weight	182Nm/t122lb-ft/ton Calculated	197Nm/t132lb-ft/ton Calculated
Estimated range	656km408mi Calculated	530km330mi Calculated
Displacement	2,979cc182cu in	3,179cc194cu in
Length	4,488mm177in	4,299mm169in
Width	1,757mm69in	1,776mm70in
Height	1,370mm54in	1,315mm52in
Wheelbase	2,725mm107in	2,540mm100in
Front track	1,471mm58in	1,530mm60in
Rear track	1,483mm58in	1,508mm59in
Trunk volume	260L	147L
Max trunk volume	300L	-
Doors	2	2
Seats	4	2
Fuel tank	63L	70L
CO2 emissions	229g/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 3 Series Convertible (E46) 330CiAlfa Romeo Spider (916) Facelift 2003 3.2 V6PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW3 Series Convertible (E46)330Ci	5,900 rpm	3,500 rpm	6,150 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	BMW3 Series Convertible (E46)330Ci	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	27.6 s	26.4 s
Top speed	247 km/h 153 mph	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	155 km/h 96 mph	158 km/h 98 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)330Ci	231 hp 172 kW
Alfa RomeoSpider (916)Facelift 20033.2 V6	240 hp 179 kW

Alfa Romeo Spider (916) Facelift 2003 3.2 V6 has 9 hp more than BMW 3 Series Convertible (E46) 330Ci.

The biggest power difference is between BMW 3 Series Convertible (E46) 330Ci and Alfa Romeo Spider (916) Facelift 2003 3.2 V6: 9 hp (7 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)330Ci	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
BMW3 Series Convertible (E46)330Ci	1,645 kg 3,627 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
BMW3 Series Convertible (E46)330Ci	247 km/h 153 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
BMW3 Series Convertible (E46)330Ci	6.9 s
Alfa RomeoSpider (916)Facelift 20033.2 V6	6.3 s

The biggest 0-100 km/h difference is between Alfa Romeo Spider (916) Facelift 2003 3.2 V6 and BMW 3 Series Convertible (E46) 330Ci: 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
BMW3 Series Convertible (E46)330Ci	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 3 Series Convertible (E46) 330Ci 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
BMW3 Series Convertible (E46)330Ci	140 hp/t 105 kW/t 7.1 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
BMW3 Series Convertible (E46)330Ci	656 km 408 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
BMW3 Series Convertible (E46)330Ci	231 hp 172 kW	6.9 s	247 km/h 153 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

BMW3 Series Convertible (E46)330Ci

Power	231 hp 172 kW
0-100 km/h	6.9 s
Top speed 247 km/h 153 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,370 mm 53.9 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

BMW3 Series Convertible (E46)330Ci

Power	231 hp 172 kW
0-100 km/h	6.9 s
Top speed 247 km/h 153 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 3 Series Convertible (E46) 330Ci 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
BMW3 Series Convertible (E46)330Ci	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
BMW3 Series Convertible (E46)330Ci	140 hp/t 105 kW/t 7.1 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

BMW3 Series Convertible (E46)330Ci

Alfa RomeoSpider (916)Facelift 20033.2 V6

Power

231 hp

172 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

247 km/h

153 mph

242 km/h

150 mph

Lightness

1,645 kg

3,627 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	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,370 mm 53.9 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

656 km

408 mi

530 km

330 mi

CO2 score

229 g/km

Trunk score

260 L

9.2 cu ft

147 L

5.2 cu ft

Power-to-weight score

140 hp/t

105 kW/t

7.1 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 3 Series Convertible (E46) 330Ci	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