BMW 8 Series (E31)
Car comparison
BMW 8 Series (E31) 850Ci 5.4vsBMW 8 Series Gran Coupe (G16) 840d
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonBMW 8 Series Gran Coupe (G16)
840d
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
BMW 8 Series Gran Coupe (G16) 840d
- Quickest 0-100 km/h5.1 s
- Highest torque680 Nm502 lb-ft
- Lowest city consumption7.4 L/100 km31.8 mpg US38.2 mpg UK
- Lowest highway consumption5.7 L/100 km41.3 mpg US49.6 mpg UK
- Largest trunk440 L
- Best overall score70/100
- Best performance score72/100
- Best economy score90/100
- Best practicality score67/100
BMW 8 Series (E31) 850Ci 5.4
- Fastest top speed265 km/h165 mph Unrestricted250 km/h155 mph Restricted
- Most powerful326 hp243 kW
- Lightest1,880 kg4,145 lb
- Best power-to-weight173 hp/t129 kW/t5.8 kg/hp
Specification comparison
| Model | BMW8 Series (E31)850Ci 5.4 | BMW8 Series Gran Coupe (G16)840d |
|---|---|---|
| Power | 326hp243kW | 320hp239kW |
| Torque | 490Nm361lb-ft | 680Nm502lb-ft |
| Curb weight | 1,880kg4,145lb | 1,925kg4,244lb |
| Gross weight | 2,300kg5,071lb | 2,560kg5,644lb |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated |
| To 99% top speed | 90.9s99% target: 262 km/h / 163 mph Calculated | 74.9s99% target: 257 km/h / 160 mph Calculated |
| 0-100 km/h | 6.3s | 5.1s |
| 0-200 km/h | 22.6s Calculated | 19.1s Calculated |
| 0-60 mph | 6.0s Calculated | 4.8s Calculated |
| Fuel consumption | - | 6.3L/100 km37.3mpg US44.8mpg UK |
| Fuel consumption city | 21.1L/100 km11.1mpg US13.4mpg UK | 7.4L/100 km31.8mpg US38.2mpg UK |
| Fuel consumption highway | 9.9L/100 km23.8mpg US28.5mpg UK | 5.7L/100 km41.3mpg US49.6mpg UK |
| Quarter mile | 14.3s Calculated | 13.3s Calculated |
| Power-to-weight | 173hp/t129kW/t79hp/1000 lb Calculated | 166hp/t124kW/t75hp/1000 lb Calculated |
| Torque-to-weight | 261Nm/t174lb-ft/ton Calculated | 353Nm/t236lb-ft/ton Calculated |
| Estimated range | - | 1,079km671mi Calculated |
| Displacement | 5,379cc328cu in | 2,993cc183cu in |
| Length | 4,780mm188in | 5,082mm200in |
| Width | 1,855mm73in | 1,932mm76in |
| Height | 1,340mm53in | 1,407mm55in |
| Wheelbase | 2,684mm106in | 3,023mm119in |
| Front track | 1,554mm61in | 1,627mm64in |
| Rear track | 1,562mm61in | 1,671mm66in |
| Trunk volume | 320L | - |
| Max trunk volume | - | 440L |
| Doors | 2 | 4 |
| Seats | 4 | 5 |
| Fuel tank | 90L | 68L |
| CO2 emissions | - | 166g/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 8 Series (E31) 850Ci 5.4: Power / Torque
- BMW 8 Series Gran Coupe (G16) 840d: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| BMW8 Series (E31)850Ci 5.4 | 5,000 rpm | 3,900 rpm | 5,250 rpm |
| BMW8 Series Gran Coupe (G16)840d | 4,400 rpm | 1,750-2,250 rpm | 4,650 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | BMW8 Series (E31)850Ci 5.4 | BMW8 Series Gran Coupe (G16)840d |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 6.0 s | 4.8 s |
0-100 km/h 0-62 mph | 6.3 s | 5.1 s |
0-200 km/h 0-124 mph | 22.6 s | 19.1 s |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited |
| Drag race simulation | ||
60 ft 18 m | 2.4 s | 2.1 s |
330 ft 101 m | 6.3 s | 5.7 s |
1/8 mile 201 m | 9.4 s | 8.6 s |
1000 ft 305 m | 12.1 s | 11.2 s |
1/4 mile 402 m | 14.3 s | 13.3 s |
Trap speed 1/4 mile 402 m | 163 km/h 101 mph | 172 km/h 107 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | 326 hp 243 kW |
| BMW8 Series Gran Coupe (G16)840d | 320 hp 239 kW |
BMW 8 Series (E31) 850Ci 5.4 has 6 hp more than BMW 8 Series Gran Coupe (G16) 840d.
The biggest power difference is between BMW 8 Series Gran Coupe (G16) 840d and BMW 8 Series (E31) 850Ci 5.4: 6 hp (4 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | 490 Nm 361 lb-ft |
| BMW8 Series Gran Coupe (G16)840d | 680 Nm 502 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | 1,880 kg 4,145 lb |
| BMW8 Series Gran Coupe (G16)840d | 1,925 kg 4,244 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| BMW8 Series Gran Coupe (G16)840d | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | 6.3 s |
| BMW8 Series Gran Coupe (G16)840d | 5.1 s |
Although BMW 8 Series (E31) 850Ci 5.4 has more power, BMW 8 Series Gran Coupe (G16) 840d is quicker from 0-100 km/h.
The biggest 0-100 km/h difference is between BMW 8 Series Gran Coupe (G16) 840d and BMW 8 Series (E31) 850Ci 5.4: 1.2 s.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| BMW8 Series (E31)850Ci 5.4 | 173 hp/t 129 kW/t 5.8 kg/hp |
| BMW8 Series Gran Coupe (G16)840d | 166 hp/t 124 kW/t 6.0 kg/hp |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| BMW8 Series (E31)850Ci 5.4 | 326 hp 243 kW | 6.3 s | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| BMW8 Series Gran Coupe (G16)840d | 320 hp 239 kW | 5.1 s | Unrestricted 260 km/h162 mph Restricted 250 km/h155 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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BMW8 Series (E31)850Ci 5.4 |
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| BMW8 Series Gran Coupe (G16)840d |
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Detailed score breakdown
| Vehicle | BMW8 Series (E31)850Ci 5.4 | BMW8 Series Gran Coupe (G16)840d | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 326 hp 243 kW | 320 hp 239 kW | ||||||||||||||||
| Torque | 490 Nm 361 lb-ft | 680 Nm 502 lb-ft | ||||||||||||||||
| Acceleration | 6.3 s | 5.1 s | ||||||||||||||||
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph | ||||||||||||||||
| Lightness | 1,880 kg 4,145 lb | 1,925 kg 4,244 lb | ||||||||||||||||
| Fuel consumption | - | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | - | 1,079 km 671 mi | ||||||||||||||||
| CO2 score | - | 166 g/km | ||||||||||||||||
| Trunk score | 320 L 11.3 cu ft | 440 L 15.5 cu ft | ||||||||||||||||
| Power-to-weight score | 173 hp/t 129 kW/t 5.8 kg/hp | 166 hp/t 124 kW/t 6.0 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 8 Series Gran Coupe (G16) 840d |
|---|---|
| Consumption | 6.3 L/100 km37.3 mpg US44.8 mpg UK |
| Cost / 100 km | 11.03 LC100 km |
| Cost / 100 mi | 17.74 LC100 mi |
| Annual fuel used | 945 L250 US gal208 UK gal |
| Annual fuel cost | 1,654 LC/year |
Head-to-head comparisons
BMW 8 Series (E31) 850Ci 5.4
- Has 6 hp more
- Is 45 kg lighter
- Has 5 km/h (3 mph) higher top speed
- Has 7 hp/t better power-to-weight
Pros
- Highest top speed
- Most powerful
- Lightest
- Best power-to-weight ratio
Cons
- Slowest 0-100 km/h
- Smallest trunk
BMW 8 Series Gran Coupe (G16) 840d
- Has 190 Nm more
- Is 1.2 s quicker from 0-100 km/h
- Has 120 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest torque
- Largest trunk
Cons
- Lowest power
- Heaviest
- Lowest top speed
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