BMW 3 Series Touring (G21)
Car comparison
BMW 3 Series Touring (G21) 320dvsBMW 3 Series Convertible (E46) · Facelift 2003 325Ci
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonBMW 3 Series Convertible (E46) · Facelift 2003
325Ci
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
BMW 3 Series Touring (G21) 320d
- Quickest 0-100 km/h7.4 s
- Fastest top speed235 km/h146 mph Unrestricted225 km/h140 mph Restricted
- Highest torque400 Nm295 lb-ft
- Lowest combined fuel consumption4.5 L/100 km52.3 mpg US62.8 mpg UK
- Lowest city consumption5.2 L/100 km45.2 mpg US54.3 mpg UK
- Lowest highway consumption4.2 L/100 km56.0 mpg US67.3 mpg UK
- Best estimated range889 km552 mi
- Largest trunk500 L
- Best overall score62/100
- Best performance score52/100
- Best economy score95/100
- Best practicality score84/100
BMW 3 Series Convertible (E46) Facelift 2003 325Ci
- Most powerful192 hp143 kW
- Lightest1,640 kg3,616 lb
- Best power-to-weight117 hp/t87 kW/t8.5 kg/hp
Specification comparison
| Model | BMW3 Series Touring (G21)320d | BMW3 Series Convertible (E46)Facelift 2003325Ci |
|---|---|---|
| Power | 190hp142kW | 192hp143kW |
| Torque | 400Nm295lb-ft | 245Nm181lb-ft |
| Curb weight | 1,690kg3,726lb | 1,640kg3,616lb |
| Gross weight | 2,290kg5,049lb | 1,985kg4,376lb |
| Top speed | Unrestricted 235 km/h146 mph Restricted 225 km/h140 mph Calculated | 234 km/h 145 mph |
| To 99% top speed | 72.8s99% target: 233 km/h / 145 mph Calculated | 109.0s99% target: 232 km/h / 144 mph Calculated |
| 0-100 km/h | 7.4s | 8.0s |
| 0-200 km/h | 28.1s Calculated | 37.2s Calculated |
| 0-60 mph | 7.0s Calculated | 7.6s Calculated |
| Fuel consumption | 4.5L/100 km52.3mpg US62.8mpg UK | 9.6L/100 km24.5mpg US29.4mpg UK |
| Fuel consumption city | 5.2L/100 km45.2mpg US54.3mpg UK | 13.4L/100 km17.6mpg US21.1mpg UK |
| Fuel consumption highway | 4.2L/100 km56mpg US67.3mpg UK | 7.3L/100 km32.2mpg US38.7mpg UK |
| Quarter mile | 15.3s Calculated | 15.8s Calculated |
| Power-to-weight | 112hp/t84kW/t51hp/1000 lb Calculated | 117hp/t87kW/t53hp/1000 lb Calculated |
| Torque-to-weight | 237Nm/t158lb-ft/ton Calculated | 149Nm/t100lb-ft/ton Calculated |
| Estimated range | 889km552mi Calculated | 656km408mi Calculated |
| Displacement | 1,995cc122cu in | 2,494cc152cu in |
| Length | 4,709mm185in | 4,488mm177in |
| Width | 1,827mm72in | 1,757mm69in |
| Height | 1,445mm57in | 1,372mm54in |
| Wheelbase | 2,851mm112in | 2,725mm107in |
| Front track | 1,573mm62in | 1,471mm58in |
| Rear track | 1,567mm62in | 1,483mm58in |
| Ground clearance | 135mm5in | - |
| Trunk volume | 500L | 260L |
| Max trunk volume | 1,510L | 300L |
| Doors | 5 | 2 |
| Seats | 5 | 4 |
| Fuel tank | 40L | 63L |
| 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 Touring (G21) 320d: Power / Torque
- BMW 3 Series Convertible (E46) Facelift 2003 325Ci: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| BMW3 Series Touring (G21)320d | 4,000 rpm | 1,750-2,500 rpm | 4,250 rpm |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 6,000 rpm | 3,500 rpm | 6,250 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | BMW3 Series Touring (G21)320d | BMW3 Series Convertible (E46)Facelift 2003325Ci |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 7.0 s | 7.6 s |
0-100 km/h 0-62 mph | 7.4 s | 8.0 s |
0-200 km/h 0-124 mph | 28.1 s | 37.2 s |
| Top speed | Unrestricted 235 km/h146 mph Restricted 225 km/h140 mph Likely limited | 234 km/h 145 mph |
| Drag race simulation | ||
60 ft 18 m | 2.7 s | 2.5 s |
330 ft 101 m | 6.8 s | 6.8 s |
1/8 mile 201 m | 10.1 s | 10.3 s |
1000 ft 305 m | 12.9 s | 13.3 s |
1/4 mile 402 m | 15.3 s | 15.8 s |
Trap speed 1/4 mile 402 m | 156 km/h 97 mph | 145 km/h 90 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 190 hp 142 kW |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 192 hp 143 kW |
BMW 3 Series Convertible (E46) Facelift 2003 325Ci has 2 hp more than BMW 3 Series Touring (G21) 320d.
The biggest power difference is between BMW 3 Series Touring (G21) 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
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 400 Nm 295 lb-ft |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 245 Nm 181 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 1,690 kg 3,726 lb |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 1,640 kg 3,616 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | Unrestricted 235 km/h146 mph Restricted 225 km/h140 mph |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 234 km/h 145 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 7.4 s |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 8.0 s |
Although BMW 3 Series Convertible (E46) Facelift 2003 325Ci has more power, BMW 3 Series Touring (G21) 320d is quicker from 0-100 km/h.
The biggest 0-100 km/h difference is between BMW 3 Series Touring (G21) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 0.6 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 4.5 L/100 km 52.3 mpg US 62.8 mpg UK |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 9.6 L/100 km 24.5 mpg US 29.4 mpg UK |
The biggest fuel consumption difference is between BMW 3 Series Touring (G21) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 5.1 L/100 km.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 112 hp/t 84 kW/t 8.9 kg/hp |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 117 hp/t 87 kW/t 8.5 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| BMW3 Series Touring (G21)320d | 889 km 552 mi |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 656 km 408 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| BMW3 Series Touring (G21)320d | 190 hp 142 kW | 7.4 s | Unrestricted 235 km/h146 mph Restricted 225 km/h140 mph |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 192 hp 143 kW | 8.0 s | 234 km/h 145 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 Touring (G21)320d |
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| BMW3 Series Convertible (E46)Facelift 2003325Ci |
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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 Touring (G21)320d |
| 4.5 L/100 km 52.3 mpg US 62.8 mpg UK | ||||||
| BMW3 Series Convertible (E46)Facelift 2003325Ci |
| 9.6 L/100 km 24.5 mpg US 29.4 mpg UK | ||||||
BMW 3 Series Touring (G21) 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.
| Vehicle | Fuel consumption, L/100 km | 0-100 km/h, s |
|---|---|---|
| BMW3 Series Touring (G21)320d | 4.5 L/100 km 52.3 mpg US 62.8 mpg UK | 7.4 s |
| BMW3 Series Convertible (E46)Facelift 2003325Ci | 9.6 L/100 km 24.5 mpg US 29.4 mpg UK | 8.0 s |
Power-to-weight vs fuel consumption
The shaded area favors higher power-to-weight with lower combined fuel consumption.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| BMW3 Series Touring (G21)320d | 112 hp/t 84 kW/t 8.9 kg/hp | 4.5 L/100 km 52.3 mpg US 62.8 mpg UK |
| 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 |
Detailed score breakdown
| Vehicle | BMW3 Series Touring (G21)320d | BMW3 Series Convertible (E46)Facelift 2003325Ci | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 190 hp 142 kW | 192 hp 143 kW | ||||||||||||||||
| Torque | 400 Nm 295 lb-ft | 245 Nm 181 lb-ft | ||||||||||||||||
| Acceleration | 7.4 s | 8.0 s | ||||||||||||||||
| Top speed | Unrestricted 235 km/h146 mph Restricted 225 km/h140 mph | 234 km/h 145 mph | ||||||||||||||||
| Lightness | 1,690 kg 3,726 lb | 1,640 kg 3,616 lb | ||||||||||||||||
| Fuel consumption | 4.5 L/100 km 52.3 mpg US 62.8 mpg UK | 9.6 L/100 km 24.5 mpg US 29.4 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 889 km 552 mi | 656 km 408 mi | ||||||||||||||||
| CO2 score | - | 229 g/km | ||||||||||||||||
| Trunk score | 500 L 17.7 cu ft | 260 L 9.2 cu ft | ||||||||||||||||
| Power-to-weight score | 112 hp/t 84 kW/t 8.9 kg/hp | 117 hp/t 87 kW/t 8.5 kg/hp | ||||||||||||||||
| Overall | Fixed score | Fixed score |
Fuel cost and annual usage
Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.
Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.
LC = Local Currency
| Vehicle | BMW 3 Series Touring (G21) 320d | BMW 3 Series Convertible (E46) Facelift 2003 325Ci |
|---|---|---|
| Consumption | 4.5 L/100 km52.3 mpg US62.8 mpg UK | 9.6 L/100 km24.5 mpg US29.4 mpg UK |
| Cost / 100 km | 7.88 LC100 km | 16.80 LC100 km |
| Cost / 100 mi | 12.67 LC100 mi | 27.04 LC100 mi |
| Annual fuel used | 675 L178 US gal148 UK gal | 1,440 L380 US gal317 UK gal |
| Annual fuel cost | 1,181 LC/year | 2,520 LC/year |
Head-to-head comparisons
BMW 3 Series Touring (G21) 320d
- Has 155 Nm more
- Is 0.6 s quicker from 0-100 km/h
- Has 1 km/h (1 mph) higher top speed
- Uses 5.1 L/100 km less fuel
- Has 233 km (145 mi) more estimated range
- Has 240 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Highest torque
- Lowest combined fuel consumption
- Best estimated range
- Largest trunk
Cons
- Lowest power
- Heaviest
BMW 3 Series Convertible (E46) Facelift 2003 325Ci
- Has 2 hp more
- Is 50 kg lighter
- Has 5 hp/t better power-to-weight
Pros
- Most powerful
- Lightest
- Best power-to-weight ratio
Cons
- Slowest 0-100 km/h
- Highest combined fuel consumption
- Lowest top speed
- Smallest trunk
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