Car comparison

BMW 3 Series Convertible (E46) · Facelift 2003 325CivsBMW 3 Series Gran Turismo (F34) 320d

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

BMW 3 Series Gran Turismo (F34)

320d

190 hp1995 ccDieselRWDAutomaticTurbocharged2015-2016

Comparison overview

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

BMW 3 Series Gran Turismo (F34) 320d

Quickest 0-100 km/h
7.7 s
Highest torque
400 Nm
295 lb-ft
Lightest
1,595 kg
3,516 lb
Best power-to-weight
119 hp/t
89 kW/t
8.4 kg/hp
Lowest combined fuel consumption
4.6 L/100 km
51.1 mpg US
61.4 mpg UK
Lowest city consumption
5.4 L/100 km
43.6 mpg US
52.3 mpg UK
Lowest highway consumption
4.1 L/100 km
57.4 mpg US
68.9 mpg UK
Lowest CO2 emissions
120 g/km
Best estimated range
1,239 km
770 mi
Largest trunk
520 L
Best overall score
59/100
Best performance score
51/100
Best economy score
94/100
Best practicality score
75/100

BMW 3 Series Convertible (E46) Facelift 2003 325Ci

Fastest top speed
234 km/h
145 mph
Most powerful
192 hp
143 kW

Specification comparison

Specification comparison
Model	BMW3 Series Convertible (E46)Facelift 2003325Ci	BMW3 Series Gran Turismo (F34)320d
Power	192hp143kW	190hp142kW
Torque	245Nm181lb-ft	400Nm295lb-ft
Curb weight	1,640kg3,616lb	1,595kg3,516lb
Gross weight	1,985kg4,376lb	2,165kg4,773lb
Top speed	234 km/h 145 mph	226 km/h 140 mph
To 99% top speed	109.3s99% target: 232 km/h / 144 mph Calculated	90.9s99% target: 224 km/h / 139 mph Calculated
0-100 km/h	8.0s	7.7s
0-200 km/h	37.2s Calculated	36.8s Calculated
0-60 mph	7.6s Calculated	7.3s Calculated
Fuel consumption	9.6L/100 km24.5mpg US29.4mpg UK	4.6L/100 km51.1mpg US61.4mpg UK
Fuel consumption city	13.4L/100 km17.6mpg US21.1mpg UK	5.4L/100 km43.6mpg US52.3mpg UK
Fuel consumption highway	7.3L/100 km32.2mpg US38.7mpg UK	4.1L/100 km57.4mpg US68.9mpg UK
Quarter mile	15.8s Calculated	15.6s Calculated
Power-to-weight	117hp/t87kW/t53hp/1000 lb Calculated	119hp/t89kW/t54hp/1000 lb Calculated
Torque-to-weight	149Nm/t100lb-ft/ton Calculated	251Nm/t168lb-ft/ton Calculated
Estimated range	656km408mi Calculated	1,239km770mi Calculated
Displacement	2,494cc152cu in	1,995cc122cu in
Length	4,488mm177in	4,824mm190in
Width	1,757mm69in	1,828mm72in
Height	1,372mm54in	1,508mm59in
Wheelbase	2,725mm107in	2,920mm115in
Front track	1,471mm58in	1,541mm61in
Rear track	1,483mm58in	1,586mm62in
Ground clearance	-	165mm6in
Trunk volume	260L	520L
Max trunk volume	300L	1,600L
Doors	2	5
Seats	4	5
Fuel tank	63L	57L
CO2 emissions	229g/km	120g/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 325CiBMW 3 Series Gran Turismo (F34) 320dPowerTorque

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
BMW3 Series Gran Turismo (F34)320d	4,000 rpm	1,750-2,500 rpm	4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW3 Series Convertible (E46)Facelift 2003325Ci	BMW3 Series Gran Turismo (F34)320d
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.6 s	7.3 s
0-100 km/h 0-62 mph	8.0 s	7.7 s
0-200 km/h 0-124 mph	37.2 s	36.8 s
Top speed	234 km/h 145 mph	226 km/h 140 mph
	Drag race simulation
60 ft 18 m	2.5 s	2.5 s
330 ft 101 m	6.8 s	6.7 s
1/8 mile 201 m	10.3 s	10.1 s
1000 ft 305 m	13.3 s	13.1 s
1/4 mile 402 m	15.8 s	15.6 s
Trap speed 1/4 mile 402 m	145 km/h 90 mph	147 km/h 91 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
BMW3 Series Gran Turismo (F34)320d	190 hp 142 kW

BMW 3 Series Convertible (E46) Facelift 2003 325Ci has 2 hp more than BMW 3 Series Gran Turismo (F34) 320d.

The biggest power difference is between BMW 3 Series Gran Turismo (F34) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 2 hp (1 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
BMW3 Series Gran Turismo (F34)320d	400 Nm 295 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
BMW3 Series Gran Turismo (F34)320d	1,595 kg 3,516 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
BMW3 Series Gran Turismo (F34)320d	226 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
BMW3 Series Gran Turismo (F34)320d	7.7 s

Although BMW 3 Series Convertible (E46) Facelift 2003 325Ci has more power, BMW 3 Series Gran Turismo (F34) 320d is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 3 Series Gran Turismo (F34) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 0.3 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
BMW3 Series Gran Turismo (F34)320d	4.6 L/100 km 51.1 mpg US 61.4 mpg UK

The biggest fuel consumption difference is between BMW 3 Series Gran Turismo (F34) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 5.0 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)Facelift 2003325Ci	117 hp/t 87 kW/t 8.5 kg/hp
BMW3 Series Gran Turismo (F34)320d	119 hp/t 89 kW/t 8.4 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
BMW3 Series Gran Turismo (F34)320d	1,239 km 770 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
BMW3 Series Gran Turismo (F34)320d	190 hp 142 kW	7.7 s	226 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

BMW3 Series Gran Turismo (F34)320d

Power	190 hp 142 kW
0-100 km/h	7.7 s
Top speed 226 km/h 140 mph

Doors/seats	5 doors 5 seats
Trunk	520 L 18.4 cu ft
Length	4,824 mm 189.9 in
Height	1,508 mm 59.4 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

BMW3 Series Gran Turismo (F34)320d

Power	190 hp 142 kW
0-100 km/h	7.7 s
Top speed 226 km/h 140 mph

4.6 L/100 km

51.1 mpg US

61.4 mpg UK

BMW 3 Series Gran Turismo (F34) 320d 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
BMW3 Series Gran Turismo (F34)320d	4.6 L/100 km 51.1 mpg US 61.4 mpg UK	7.7 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
BMW3 Series Gran Turismo (F34)320d	119 hp/t 89 kW/t 8.4 kg/hp	4.6 L/100 km 51.1 mpg US 61.4 mpg UK

Detailed score breakdown

Vehicle

BMW3 Series Convertible (E46)Facelift 2003325Ci

BMW3 Series Gran Turismo (F34)320d

Power

192 hp

143 kW

190 hp

142 kW

Torque

245 Nm

181 lb-ft

400 Nm

295 lb-ft

Acceleration

8.0 s

7.7 s

Top speed

234 km/h

145 mph

226 km/h

140 mph

Lightness

1,640 kg

3,616 lb

1,595 kg

3,516 lb

Fuel consumption

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

4.6 L/100 km

51.1 mpg US

61.4 mpg UK

Practicality

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

Doors/seats	5 doors 5 seats
Trunk	520 L 18.4 cu ft
Length	4,824 mm 189.9 in
Height	1,508 mm 59.4 in

Range score

656 km

408 mi

1,239 km

770 mi

CO2 score

229 g/km

120 g/km

Trunk score

260 L

9.2 cu ft

520 L

18.4 cu ft

Power-to-weight score

117 hp/t

87 kW/t

8.5 kg/hp

119 hp/t

89 kW/t

8.4 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	BMW 3 Series Gran Turismo (F34) 320d
Consumption	9.6 L/100 km24.5 mpg US29.4 mpg UK	4.6 L/100 km51.1 mpg US61.4 mpg UK
Cost / 100 km	16.80 LC100 km	8.05 LC100 km
Cost / 100 mi	27.04 LC100 mi	12.96 LC100 mi
Annual fuel used	1,440 L380 US gal317 UK gal	690 L182 US gal152 UK gal
Annual fuel cost	2,520 LC/year	1,208 LC/year