Car comparison

BMW 3 Series Convertible (E46) · Facelift 2003 325CivsAlfa Romeo Spider (916) 3.0 V6

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

New comparison

BMW 3 Series Convertible (E46) · Facelift 2003

325Ci

192 hp2494 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2003-2006

Alfa Romeo Spider (916)

3.0 V6

192 hp2959 ccGasolineFWDManualNaturally aspiratedCabriolet / convertible1995-2000

Comparison overview

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

BMW 3 Series Convertible (E46) Facelift 2003 325Ci

Fastest top speed
234 km/h
145 mph
Most powerful
192 hp
143 kW
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
Largest trunk
260 L
Best overall score
46/100
Best economy score
81/100
Best practicality score
43/100

Alfa Romeo Spider (916) 3.0 V6

Quickest 0-100 km/h
7.3 s
Highest torque
260 Nm
192 lb-ft
Lightest
1,420 kg
3,131 lb
Best power-to-weight
135 hp/t
101 kW/t
7.4 kg/hp
Lowest combined fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Best estimated range
737 km
458 mi
Best performance score
49/100

Specification comparison

Specification comparison
Model	BMW3 Series Convertible (E46)Facelift 2003325Ci	Alfa RomeoSpider (916)3.0 V6
Power	192hp143kW	192hp143kW
Torque	245Nm181lb-ft	260Nm192lb-ft
Curb weight	1,640kg3,616lb	1,420kg3,131lb
Gross weight	1,985kg4,376lb	1,680kg3,704lb
Top speed	234 km/h 145 mph	225 km/h 140 mph
To 99% top speed	109.3s99% target: 232 km/h / 144 mph Calculated	91.1s99% target: 223 km/h / 138 mph Calculated
0-100 km/h	8.0s	7.3s
0-200 km/h	37.2s Calculated	36.8s Calculated
0-60 mph	7.6s Calculated	6.9s Calculated
Fuel consumption	9.6L/100 km24.5mpg US29.4mpg UK	9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city	13.4L/100 km17.6mpg US21.1mpg UK	16.8L/100 km14mpg US16.8mpg UK
Fuel consumption highway	7.3L/100 km32.2mpg US38.7mpg UK	7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile	15.8s Calculated	15.3s Calculated
Power-to-weight	117hp/t87kW/t53hp/1000 lb Calculated	135hp/t101kW/t61hp/1000 lb Calculated
Torque-to-weight	149Nm/t100lb-ft/ton Calculated	183Nm/t123lb-ft/ton Calculated
Estimated range	656km408mi Calculated	737km458mi Calculated
Displacement	2,494cc152cu in	2,959cc181cu in
Length	4,488mm177in	4,285mm169in
Width	1,757mm69in	1,780mm70in
Height	1,372mm54in	1,315mm52in
Wheelbase	2,725mm107in	2,540mm100in
Front track	1,471mm58in	1,499mm59in
Rear track	1,483mm58in	1,497mm59in
Trunk volume	260L	110L
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) Facelift 2003 325CiAlfa Romeo Spider (916) 3.0 V6PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW3 Series Convertible (E46)Facelift 2003325Ci	6,000 rpm	3,500 rpm	6,250 rpm
Alfa RomeoSpider (916)3.0 V6	5,600 rpm	4,400 rpm	5,850 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW3 Series Convertible (E46)Facelift 2003325Ci	Alfa RomeoSpider (916)3.0 V6
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.6 s	6.9 s
0-100 km/h 0-62 mph	8.0 s	7.3 s
0-200 km/h 0-124 mph	37.2 s	36.8 s
Top speed	234 km/h 145 mph	225 km/h 140 mph
	Drag race simulation
60 ft 18 m	2.5 s	2.4 s
330 ft 101 m	6.8 s	6.5 s
1/8 mile 201 m	10.3 s	9.9 s
1000 ft 305 m	13.3 s	12.8 s
1/4 mile 402 m	15.8 s	15.3 s
Trap speed 1/4 mile 402 m	145 km/h 90 mph	148 km/h 92 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	192 hp 143 kW
Alfa RomeoSpider (916)3.0 V6	192 hp 143 kW

Torque comparison

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

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	245 Nm 181 lb-ft
Alfa RomeoSpider (916)3.0 V6	260 Nm 192 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)Facelift 2003325Ci	1,640 kg 3,616 lb
Alfa RomeoSpider (916)3.0 V6	1,420 kg 3,131 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)Facelift 2003325Ci	234 km/h 145 mph
Alfa RomeoSpider (916)3.0 V6	225 km/h 140 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)Facelift 2003325Ci	8.0 s
Alfa RomeoSpider (916)3.0 V6	7.3 s

The biggest 0-100 km/h difference is between Alfa Romeo Spider (916) 3.0 V6 and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 0.7 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)Facelift 2003325Ci	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
Alfa RomeoSpider (916)3.0 V6	9.5 L/100 km 24.8 mpg US 29.7 mpg UK

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)Facelift 2003325Ci	117 hp/t 87 kW/t 8.5 kg/hp
Alfa RomeoSpider (916)3.0 V6	135 hp/t 101 kW/t 7.4 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)Facelift 2003325Ci	656 km 408 mi
Alfa RomeoSpider (916)3.0 V6	737 km 458 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)Facelift 2003325Ci	192 hp 143 kW	8.0 s	234 km/h 145 mph
Alfa RomeoSpider (916)3.0 V6	192 hp 143 kW	7.3 s	225 km/h 140 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)Facelift 2003325Ci

Power	192 hp 143 kW
0-100 km/h	8.0 s
Top speed 234 km/h 145 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,372 mm 54.0 in

Alfa RomeoSpider (916)3.0 V6

Power	192 hp 143 kW
0-100 km/h	7.3 s
Top speed 225 km/h 140 mph

Doors/seats	2 doors 2 seats
Trunk	110 L 3.9 cu ft
Length	4,285 mm 168.7 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)Facelift 2003325Ci

Power	192 hp 143 kW
0-100 km/h	8.0 s
Top speed 234 km/h 145 mph

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

Alfa RomeoSpider (916)3.0 V6

Power	192 hp 143 kW
0-100 km/h	7.3 s
Top speed 225 km/h 140 mph

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

Alfa Romeo Spider (916) 3.0 V6 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)Facelift 2003325Ci	9.6 L/100 km 24.5 mpg US 29.4 mpg UK	8.0 s
Alfa RomeoSpider (916)3.0 V6	9.5 L/100 km 24.8 mpg US 29.7 mpg UK	7.3 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)Facelift 2003325Ci	117 hp/t 87 kW/t 8.5 kg/hp	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
Alfa RomeoSpider (916)3.0 V6	135 hp/t 101 kW/t 7.4 kg/hp	9.5 L/100 km 24.8 mpg US 29.7 mpg UK

Detailed score breakdown

Vehicle

BMW3 Series Convertible (E46)Facelift 2003325Ci

Alfa RomeoSpider (916)3.0 V6

Power

192 hp

143 kW

192 hp

143 kW

Torque

245 Nm

181 lb-ft

260 Nm

192 lb-ft

Acceleration

8.0 s

7.3 s

Top speed

234 km/h

145 mph

225 km/h

140 mph

Lightness

1,640 kg

3,616 lb

1,420 kg

3,131 lb

Fuel consumption

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,372 mm 54.0 in

Doors/seats	2 doors 2 seats
Trunk	110 L 3.9 cu ft
Length	4,285 mm 168.7 in
Height	1,315 mm 51.8 in

Range score

656 km

408 mi

737 km

458 mi

CO2 score

229 g/km

Trunk score

260 L

9.2 cu ft

110 L

3.9 cu ft

Power-to-weight score

117 hp/t

87 kW/t

8.5 kg/hp

135 hp/t

101 kW/t

7.4 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) Facelift 2003 325Ci	Alfa Romeo Spider (916) 3.0 V6
Consumption	9.6 L/100 km24.5 mpg US29.4 mpg UK	9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km	16.80 LC100 km	16.63 LC100 km
Cost / 100 mi	27.04 LC100 mi	26.76 LC100 mi
Annual fuel used	1,440 L380 US gal317 UK gal	1,425 L376 US gal313 UK gal
Annual fuel cost	2,520 LC/year	2,494 LC/year