BMW M3 Convertible (E46)
Car comparison
BMW M3 Convertible (E46) 3.2i 24VvsBMW M3 Coupe (E30) 2.5
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonBMW M3 Coupe (E30)
2.5
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
BMW M3 Coupe (E30) 2.5
- Lightest1,200 kg2,646 lb
- Lowest combined fuel consumption8.8 L/100 km26.7 mpg US32.1 mpg UK
- Lowest city consumption12.5 L/100 km18.8 mpg US22.6 mpg UK
- Lowest highway consumption7.8 L/100 km30.2 mpg US36.2 mpg UK
- Best estimated range795 km494 mi
- Largest trunk420 L
- Best economy score83/100
- Best practicality score51/100
BMW M3 Convertible (E46) 3.2i 24V
- Quickest 0-100 km/h5.5 s
- Fastest top speed260 km/h162 mph Unrestricted250 km/h155 mph Restricted
- Most powerful343 hp256 kW
- Highest torque365 Nm269 lb-ft
- Best power-to-weight207 hp/t155 kW/t4.8 kg/hp
- Best overall score59/100
- Best performance score66/100
Specification comparison
| Model | BMWM3 Convertible (E46)3.2i 24V | BMWM3 Coupe (E30)2.5 |
|---|---|---|
| Power | 343hp256kW | 238hp177kW |
| Torque | 365Nm269lb-ft | 240Nm177lb-ft |
| Curb weight | 1,655kg3,649lb | 1,200kg2,646lb |
| Gross weight | 2,100kg4,630lb | 1,600kg3,527lb |
| Top speed | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated | 248 km/h 154 mph |
| To 99% top speed | 76.2s99% target: 257 km/h / 160 mph Calculated | 77.9s99% target: 246 km/h / 153 mph Calculated |
| 0-100 km/h | 5.5s | 6.5s |
| 0-200 km/h | 20.0s Calculated | 24.2s Calculated |
| 0-60 mph | 5.2s Calculated | 6.2s Calculated |
| Fuel consumption | 12.1L/100 km19.4mpg US23.3mpg UK | 8.8L/100 km26.7mpg US32.1mpg UK |
| Fuel consumption city | 17.9L/100 km13.1mpg US15.8mpg UK | 12.5L/100 km18.8mpg US22.6mpg UK |
| Fuel consumption highway | 8.8L/100 km26.7mpg US32.1mpg UK | 7.8L/100 km30.2mpg US36.2mpg UK |
| Quarter mile | 13.6s Calculated | 14.5s Calculated |
| Power-to-weight | 207hp/t155kW/t94hp/1000 lb Calculated | 198hp/t148kW/t90hp/1000 lb Calculated |
| Torque-to-weight | 221Nm/t148lb-ft/ton Calculated | 200Nm/t134lb-ft/ton Calculated |
| Estimated range | 521km324mi Calculated | 795km494mi Calculated |
| Displacement | 3,246cc198cu in | 2,467cc151cu in |
| Length | 4,492mm177in | 4,345mm171in |
| Width | 1,780mm70in | 1,680mm66in |
| Height | 1,363mm54in | 1,370mm54in |
| Wheelbase | 2,731mm108in | 2,565mm101in |
| Front track | 1,508mm59in | 1,424mm56in |
| Rear track | 1,525mm60in | 1,445mm57in |
| Trunk volume | 300L | 420L |
| Doors | 2 | 2 |
| Seats | 4 | 4 |
| Fuel tank | 63L | 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 M3 Convertible (E46) 3.2i 24V: Power / Torque
- BMW M3 Coupe (E30) 2.5: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 7,900 rpm | 4,900 rpm | 8,150 rpm |
| BMWM3 Coupe (E30)2.5 | 7,000 rpm | 4,750 rpm | 7,250 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | BMWM3 Convertible (E46)3.2i 24V | BMWM3 Coupe (E30)2.5 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 5.2 s | 6.2 s |
0-100 km/h 0-62 mph | 5.5 s | 6.5 s |
0-200 km/h 0-124 mph | 20.0 s | 24.2 s |
| Top speed | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited | 248 km/h 154 mph |
| Drag race simulation | ||
60 ft 18 m | 2.2 s | 2.4 s |
330 ft 101 m | 5.9 s | 6.4 s |
1/8 mile 201 m | 8.9 s | 9.6 s |
1000 ft 305 m | 11.5 s | 12.3 s |
1/4 mile 402 m | 13.6 s | 14.5 s |
Trap speed 1/4 mile 402 m | 170 km/h 105 mph | 161 km/h 100 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 343 hp 256 kW |
| BMWM3 Coupe (E30)2.5 | 238 hp 177 kW |
BMW M3 Convertible (E46) 3.2i 24V has 105 hp more than BMW M3 Coupe (E30) 2.5.
The biggest power difference is between BMW M3 Coupe (E30) 2.5 and BMW M3 Convertible (E46) 3.2i 24V: 105 hp (78 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 365 Nm 269 lb-ft |
| BMWM3 Coupe (E30)2.5 | 240 Nm 177 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 1,655 kg 3,649 lb |
| BMWM3 Coupe (E30)2.5 | 1,200 kg 2,646 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph |
| BMWM3 Coupe (E30)2.5 | 248 km/h 154 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 5.5 s |
| BMWM3 Coupe (E30)2.5 | 6.5 s |
The biggest 0-100 km/h difference is between BMW M3 Convertible (E46) 3.2i 24V and BMW M3 Coupe (E30) 2.5: 1.0 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 12.1 L/100 km 19.4 mpg US 23.3 mpg UK |
| BMWM3 Coupe (E30)2.5 | 8.8 L/100 km 26.7 mpg US 32.1 mpg UK |
The biggest fuel consumption difference is between BMW M3 Coupe (E30) 2.5 and BMW M3 Convertible (E46) 3.2i 24V: 3.3 L/100 km.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 207 hp/t 155 kW/t 4.8 kg/hp |
| BMWM3 Coupe (E30)2.5 | 198 hp/t 148 kW/t 5.0 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 521 km 324 mi |
| BMWM3 Coupe (E30)2.5 | 795 km 494 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 343 hp 256 kW | 5.5 s | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph |
| BMWM3 Coupe (E30)2.5 | 238 hp 177 kW | 6.5 s | 248 km/h 154 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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V |
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| BMWM3 Coupe (E30)2.5 |
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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 | ||||||
|---|---|---|---|---|---|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V |
| 12.1 L/100 km 19.4 mpg US 23.3 mpg UK | ||||||
| BMWM3 Coupe (E30)2.5 |
| 8.8 L/100 km 26.7 mpg US 32.1 mpg UK | ||||||
BMW M3 Convertible (E46) 3.2i 24V 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 |
|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 12.1 L/100 km 19.4 mpg US 23.3 mpg UK | 5.5 s |
| BMWM3 Coupe (E30)2.5 | 8.8 L/100 km 26.7 mpg US 32.1 mpg UK | 6.5 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 |
|---|---|---|
| BMWM3 Convertible (E46)3.2i 24V | 207 hp/t 155 kW/t 4.8 kg/hp | 12.1 L/100 km 19.4 mpg US 23.3 mpg UK |
| BMWM3 Coupe (E30)2.5 | 198 hp/t 148 kW/t 5.0 kg/hp | 8.8 L/100 km 26.7 mpg US 32.1 mpg UK |
Detailed score breakdown
| Vehicle | BMWM3 Convertible (E46)3.2i 24V | BMWM3 Coupe (E30)2.5 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 343 hp 256 kW | 238 hp 177 kW | ||||||||||||||||
| Torque | 365 Nm 269 lb-ft | 240 Nm 177 lb-ft | ||||||||||||||||
| Acceleration | 5.5 s | 6.5 s | ||||||||||||||||
| Top speed | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph | 248 km/h 154 mph | ||||||||||||||||
| Lightness | 1,655 kg 3,649 lb | 1,200 kg 2,646 lb | ||||||||||||||||
| Fuel consumption | 12.1 L/100 km 19.4 mpg US 23.3 mpg UK | 8.8 L/100 km 26.7 mpg US 32.1 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 521 km 324 mi | 795 km 494 mi | ||||||||||||||||
| Trunk score | 300 L 10.6 cu ft | 420 L 14.8 cu ft | ||||||||||||||||
| Power-to-weight score | 207 hp/t 155 kW/t 4.8 kg/hp | 198 hp/t 148 kW/t 5.0 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 M3 Convertible (E46) 3.2i 24V | BMW M3 Coupe (E30) 2.5 |
|---|---|---|
| Consumption | 12.1 L/100 km19.4 mpg US23.3 mpg UK | 8.8 L/100 km26.7 mpg US32.1 mpg UK |
| Cost / 100 km | 21.18 LC100 km | 15.40 LC100 km |
| Cost / 100 mi | 34.08 LC100 mi | 24.78 LC100 mi |
| Annual fuel used | 1,815 L479 US gal399 UK gal | 1,320 L349 US gal290 UK gal |
| Annual fuel cost | 3,176 LC/year | 2,310 LC/year |
Head-to-head comparisons
BMW M3 Convertible (E46) 3.2i 24V
- Has 105 hp more
- Has 125 Nm more
- Is 1.0 s quicker from 0-100 km/h
- Has 12 km/h (7 mph) higher top speed
- Has 9 hp/t better power-to-weight
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Best power-to-weight ratio
Cons
- Highest combined fuel consumption
- Heaviest
- Smallest trunk
BMW M3 Coupe (E30) 2.5
- Is 455 kg lighter
- Uses 3.3 L/100 km less fuel
- Has 275 km (171 mi) more estimated range
- Has 120 L more trunk volume
Pros
- Lightest
- Lowest combined fuel consumption
- Best estimated range
- Largest trunk
Cons
- Slowest 0-100 km/h
- Lowest power
- Lowest top speed
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