BMW M3 Convertible (E30)
Car comparison
BMW M3 Convertible (E30) 2.3vsAlfa Romeo Spider (916) 3.0 V6
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonAlfa Romeo Spider (916)
3.0 V6
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
BMW M3 Convertible (E30) 2.3
- Quickest 0-100 km/h7.3 s
- Fastest top speed233 km/h145 mph
- Most powerful200 hp149 kW
- Lightest1,360 kg2,998 lb
- Best power-to-weight147 hp/t110 kW/t6.8 kg/hp
- Lowest combined fuel consumption8.9 L/100 km26.4 mpg US31.7 mpg UK
- Lowest city consumption12.6 L/100 km18.7 mpg US22.4 mpg UK
- Largest trunk303 L
- Best overall score48/100
- Best performance score50/100
- Best economy score83/100
- Best practicality score45/100
Alfa Romeo Spider (916) 3.0 V6
- Highest torque260 Nm192 lb-ft
- Lowest highway consumption7.6 L/100 km30.9 mpg US37.2 mpg UK
- Best estimated range737 km458 mi
Specification comparison
| Model | BMWM3 Convertible (E30)2.3 | Alfa RomeoSpider (916)3.0 V6 |
|---|---|---|
| Power | 200hp149kW | 192hp143kW |
| Torque | 240Nm177lb-ft | 260Nm192lb-ft |
| Curb weight | 1,360kg2,998lb | 1,420kg3,131lb |
| Gross weight | 1,720kg3,792lb | 1,680kg3,704lb |
| Top speed | 233 km/h 145 mph | 225 km/h 140 mph |
| To 99% top speed | 90.9s99% target: 231 km/h / 143 mph Calculated | 91.1s99% target: 223 km/h / 138 mph Calculated |
| 0-100 km/h | 7.3s | 7.3s |
| 0-200 km/h | 32.6s Calculated | 36.8s Calculated |
| 0-60 mph | 6.9s Calculated | 6.9s Calculated |
| Fuel consumption | 8.9L/100 km26.4mpg US31.7mpg UK | 9.5L/100 km24.8mpg US29.7mpg UK |
| Fuel consumption city | 12.6L/100 km18.7mpg US22.4mpg UK | 16.8L/100 km14mpg US16.8mpg UK |
| Fuel consumption highway | 7.8L/100 km30.2mpg US36.2mpg UK | 7.6L/100 km30.9mpg US37.2mpg UK |
| Quarter mile | 15.3s Calculated | 15.3s Calculated |
| Power-to-weight | 147hp/t110kW/t67hp/1000 lb Calculated | 135hp/t101kW/t61hp/1000 lb Calculated |
| Torque-to-weight | 176Nm/t118lb-ft/ton Calculated | 183Nm/t123lb-ft/ton Calculated |
| Estimated range | 697km433mi Calculated | 737km458mi Calculated |
| Displacement | 2,302cc140cu in | 2,959cc181cu in |
| Length | 4,345mm171in | 4,285mm169in |
| Width | 1,680mm66in | 1,780mm70in |
| Height | 1,370mm54in | 1,315mm52in |
| Wheelbase | 2,565mm101in | 2,540mm100in |
| Front track | 1,414mm56in | 1,499mm59in |
| Rear track | 1,435mm56in | 1,497mm59in |
| Trunk volume | 303L | 110L |
| Doors | 2 | 2 |
| Seats | 4 | 2 |
| Fuel tank | 62L | 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 (E30) 2.3: Power / Torque
- Alfa Romeo Spider (916) 3.0 V6: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| BMWM3 Convertible (E30)2.3 | 6,750 rpm | 4,750 rpm | 7,000 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.
| Metric | BMWM3 Convertible (E30)2.3 | Alfa RomeoSpider (916)3.0 V6 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 6.9 s | 6.9 s |
0-100 km/h 0-62 mph | 7.3 s | 7.3 s |
0-200 km/h 0-124 mph | 32.6 s | 36.8 s |
| Top speed | 233 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 | 6.6 s | 6.5 s |
1/8 mile 201 m | 9.9 s | 9.9 s |
1000 ft 305 m | 12.8 s | 12.8 s |
1/4 mile 402 m | 15.3 s | 15.3 s |
Trap speed 1/4 mile 402 m | 150 km/h 93 mph | 148 km/h 92 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 200 hp 149 kW |
| Alfa RomeoSpider (916)3.0 V6 | 192 hp 143 kW |
BMW M3 Convertible (E30) 2.3 has 8 hp more than Alfa Romeo Spider (916) 3.0 V6.
The biggest power difference is between Alfa Romeo Spider (916) 3.0 V6 and BMW M3 Convertible (E30) 2.3: 8 hp (6 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 240 Nm 177 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
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 1,360 kg 2,998 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
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 233 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
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 7.3 s |
| Alfa RomeoSpider (916)3.0 V6 | 7.3 s |
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK |
| Alfa RomeoSpider (916)3.0 V6 | 9.5 L/100 km 24.8 mpg US 29.7 mpg UK |
The biggest fuel consumption difference is between BMW M3 Convertible (E30) 2.3 and Alfa Romeo Spider (916) 3.0 V6: 0.6 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 (E30)2.3 | 147 hp/t 110 kW/t 6.8 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
| Vehicle | Value |
|---|---|
| BMWM3 Convertible (E30)2.3 | 697 km 433 mi |
| Alfa RomeoSpider (916)3.0 V6 | 737 km 458 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| BMWM3 Convertible (E30)2.3 | 200 hp 149 kW | 7.3 s | 233 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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BMWM3 Convertible (E30)2.3 |
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| Alfa RomeoSpider (916)3.0 V6 |
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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 (E30)2.3 |
| 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | ||||||
| Alfa RomeoSpider (916)3.0 V6 |
| 9.5 L/100 km 24.8 mpg US 29.7 mpg UK | ||||||
BMW M3 Convertible (E30) 2.3 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 (E30)2.3 | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | 7.3 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.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| BMWM3 Convertible (E30)2.3 | 147 hp/t 110 kW/t 6.8 kg/hp | 8.9 L/100 km 26.4 mpg US 31.7 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 | BMWM3 Convertible (E30)2.3 | Alfa RomeoSpider (916)3.0 V6 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 200 hp 149 kW | 192 hp 143 kW | ||||||||||||||||
| Torque | 240 Nm 177 lb-ft | 260 Nm 192 lb-ft | ||||||||||||||||
| Acceleration | 7.3 s | 7.3 s | ||||||||||||||||
| Top speed | 233 km/h 145 mph | 225 km/h 140 mph | ||||||||||||||||
| Lightness | 1,360 kg 2,998 lb | 1,420 kg 3,131 lb | ||||||||||||||||
| Fuel consumption | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | 9.5 L/100 km 24.8 mpg US 29.7 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 697 km 433 mi | 737 km 458 mi | ||||||||||||||||
| Trunk score | 303 L 10.7 cu ft | 110 L 3.9 cu ft | ||||||||||||||||
| Power-to-weight score | 147 hp/t 110 kW/t 6.8 kg/hp | 135 hp/t 101 kW/t 7.4 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 (E30) 2.3 | Alfa Romeo Spider (916) 3.0 V6 |
|---|---|---|
| Consumption | 8.9 L/100 km26.4 mpg US31.7 mpg UK | 9.5 L/100 km24.8 mpg US29.7 mpg UK |
| Cost / 100 km | 15.58 LC100 km | 16.63 LC100 km |
| Cost / 100 mi | 25.07 LC100 mi | 26.76 LC100 mi |
| Annual fuel used | 1,335 L353 US gal294 UK gal | 1,425 L376 US gal313 UK gal |
| Annual fuel cost | 2,336 LC/year | 2,494 LC/year |
Head-to-head comparisons
BMW M3 Convertible (E30) 2.3
- Has 8 hp more
- Is 60 kg lighter
- Has 8 km/h (5 mph) higher top speed
- Uses 0.6 L/100 km less fuel
- Has 12 hp/t better power-to-weight
- Has 193 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Lightest
- Lowest combined fuel consumption
- Best power-to-weight ratio
- Largest trunk
Alfa Romeo Spider (916) 3.0 V6
- Has 20 Nm more
- Has 40 km (25 mi) more estimated range
Pros
- Highest torque
- Best estimated range
Cons
- Lowest power
- Highest combined fuel consumption
- Heaviest
- Lowest top speed
- Smallest trunk
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