
BMW 8 Series Convertible (G14)
Car comparison
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
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BMW 8 Series Convertible (G14)

BMW 8 Series Convertible (G14)

BMW 8 Series Convertible (G14)

BMW 8 Series Convertible (G14)
Use the estimates as comparison hints and verify exact figures before making decisions.
| Model | BMW8 Series Convertible (G14)840d (Stage 3)496 hp | BMW8 Series Convertible (G14)840d (Stage 2)432 hp | BMW8 Series Convertible (G14)840d (Stage 1)384 hp | BMW8 Series Convertible (G14)840d320 hp |
|---|---|---|---|---|
| Power | 496hp370kW+176 hp | 432hp322kW+112 hp | 384hp286kW+64 hp | 320hp239kW |
| Torque | 1,088Nm802lb-ft+408 Nm | 952Nm702lb-ft+272 Nm | 850Nm627lb-ft+170 Nm | 680Nm502lb-ft |
| Curb weight | 1,955kg4,310lb | 1,955kg4,310lb | 1,955kg4,310lb | 1,955kg4,310lb |
| Gross weight | 2,485kg5,478lb | 2,485kg5,478lb | 2,485kg5,478lb | 2,485kg5,478lb |
| Top speed | 295 km/h 183 mph | 284 km/h 176 mph | 274 km/h 170 mph | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated |
| To 99% top speed | 59.8s99% target: 292 km/h / 181 mph-16.4 s Calculated | 65.3s99% target: 281 km/h / 175 mph-10.9 s Calculated | 69.6s99% target: 271 km/h / 169 mph-6.6 s Calculated | 76.2s99% target: 257 km/h / 160 mph Calculated |
| 0-100 km/h | 4.0s-1.3 s | 4.3s-0.9 s | 4.6s-0.6 s | 5.2s |
| 0-200 km/h | 12.3s-7.2 s Calculated | 14.1s-5.3 s Calculated | 16.0s-3.5 s Calculated | 19.5s Calculated |
| 0-60 mph | 3.8s-1.2 s Calculated | 4.1s-0.8 s Calculated | 4.4s-0.5 s Calculated | 4.9s Calculated |
| Fuel consumption | 6.3L/100 km37.3mpg US44.8mpg UK | 6.3L/100 km37.3mpg US44.8mpg UK | 6.3L/100 km37.3mpg US44.8mpg UK | 6.3L/100 km37.3mpg US44.8mpg UK |
| Fuel consumption city | 7.4L/100 km31.8mpg US38.2mpg UK | 7.4L/100 km31.8mpg US38.2mpg UK | 7.4L/100 km31.8mpg US38.2mpg UK | 7.4L/100 km31.8mpg US38.2mpg UK |
| Fuel consumption highway | 5.6L/100 km42mpg US50.4mpg UK | 5.6L/100 km42mpg US50.4mpg UK | 5.6L/100 km42mpg US50.4mpg UK | 5.6L/100 km42mpg US50.4mpg UK |
| Quarter mile | 11.9s-1.5 s Calculated | 12.3s-1.0 s Calculated | 12.7s-0.6 s Calculated | 13.4s Calculated |
| Power-to-weight | 254hp/t189kW/t115hp/1000 lb Calculated | 221hp/t165kW/t100hp/1000 lb Calculated | 196hp/t146kW/t89hp/1000 lb Calculated | 164hp/t122kW/t74hp/1000 lb Calculated |
| Torque-to-weight | 557Nm/t372lb-ft/ton Calculated | 487Nm/t326lb-ft/ton Calculated | 435Nm/t291lb-ft/ton Calculated | 348Nm/t233lb-ft/ton Calculated |
| Estimated range | 1,048km651mi Calculated | 1,048km651mi Calculated | 1,048km651mi Calculated | 1,048km651mi Calculated |
| Displacement | 2,993cc183cu in | 2,993cc183cu in | 2,993cc183cu in | 2,993cc183cu in |
| Length | 4,843mm191in | 4,843mm191in | 4,843mm191in | 4,843mm191in |
| Width | 1,902mm75in | 1,902mm75in | 1,902mm75in | 1,902mm75in |
| Height | 1,339mm53in | 1,339mm53in | 1,339mm53in | 1,339mm53in |
| Wheelbase | 2,822mm111in | 2,822mm111in | 2,822mm111in | 2,822mm111in |
| Front track | 1,619mm64in | 1,619mm64in | 1,619mm64in | 1,619mm64in |
| Rear track | 1,642mm65in | 1,642mm65in | 1,642mm65in | 1,642mm65in |
| Ground clearance | 118mm5in | 118mm5in | 118mm5in | 118mm5in |
| Trunk volume | 350L | 350L | 350L | 350L |
| Doors | 2 | 2 | 2 | 2 |
| Seats | 4 | 4 | 4 | 4 |
| Fuel tank | 66L | 66L | 66L | 66L |
| CO2 emissions | 166g/km | 166g/km | 166g/km | 166g/km |
Use the estimates as comparison hints and verify exact figures before making decisions.
Estimated stock-style power and torque curves by engine speed.
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 4,400 rpm | 1,750-2,250 rpm | 4,650 rpm |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 4,400 rpm | 1,750-2,250 rpm | 4,650 rpm |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 4,400 rpm | 1,750-2,250 rpm | 4,650 rpm |
| BMW8 Series Convertible (G14)840d320 hp | 4,400 rpm | 1,750-2,250 rpm | 4,650 rpm |
Estimated speed over time for selected vehicles.
| Metric | BMW8 Series Convertible (G14)840d (Stage 3)496 hp | BMW8 Series Convertible (G14)840d (Stage 2)432 hp | BMW8 Series Convertible (G14)840d (Stage 1)384 hp | BMW8 Series Convertible (G14)840d320 hp |
|---|---|---|---|---|
| Acceleration checkpoints | ||||
0-60 mph 0-97 km/h | 3.8 s | 4.1 s | 4.4 s | 4.9 s |
0-100 km/h 0-62 mph | 4.0 s | 4.3 s | 4.6 s | 5.2 s |
0-200 km/h 0-124 mph | 12.3 s | 14.1 s | 16.0 s | 19.5 s |
| Top speed | 295 km/h 183 mph | 284 km/h 176 mph | 274 km/h 170 mph | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited |
| Drag race simulation | ||||
60 ft 18 m | 2.0 s | 2.0 s | 2.1 s | 2.2 s |
330 ft 101 m | 5.2 s | 5.4 s | 5.5 s | 5.8 s |
1/8 mile 201 m | 7.8 s | 8.1 s | 8.3 s | 8.7 s |
1000 ft 305 m | 10.0 s | 10.4 s | 10.7 s | 11.2 s |
1/4 mile 402 m | 11.9 s | 12.3 s | 12.7 s | 13.4 s |
Trap speed 1/4 mile 402 m | 197 km/h 122 mph | 188 km/h 117 mph | 181 km/h 112 mph | 171 km/h 106 mph |
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 496 hp 370 kW |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 432 hp 322 kW |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 384 hp 286 kW |
| BMW8 Series Convertible (G14)840d320 hp | 320 hp 239 kW |
BMW 8 Series Convertible (G14) 840d (Stage 3) 496 hp has 176 hp more than BMW 8 Series Convertible (G14) 840d 320 hp.
The biggest power difference is between BMW 8 Series Convertible (G14) 840d 320 hp and BMW 8 Series Convertible (G14) 840d (Stage 3) 496 hp: 176 hp (131 kW).
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 1,088 Nm 802 lb-ft |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 952 Nm 702 lb-ft |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 850 Nm 627 lb-ft |
| BMW8 Series Convertible (G14)840d320 hp | 680 Nm 502 lb-ft |
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 1,955 kg 4,310 lb |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 1,955 kg 4,310 lb |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 1,955 kg 4,310 lb |
| BMW8 Series Convertible (G14)840d320 hp | 1,955 kg 4,310 lb |
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 295 km/h 183 mph |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 284 km/h 176 mph |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 274 km/h 170 mph |
| BMW8 Series Convertible (G14)840d320 hp | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph |
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 4.0 s |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 4.3 s |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 4.6 s |
| BMW8 Series Convertible (G14)840d320 hp | 5.2 s |
The biggest 0-100 km/h difference is between BMW 8 Series Convertible (G14) 840d (Stage 3) 496 hp and BMW 8 Series Convertible (G14) 840d 320 hp: 1.3 s.
The closest cars by acceleration are BMW 8 Series Convertible (G14) 840d (Stage 2) 432 hp and BMW 8 Series Convertible (G14) 840d (Stage 1) 384 hp, separated by only 0.3 s.
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d320 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 254 hp/t 189 kW/t 3.9 kg/hp |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 221 hp/t 165 kW/t 4.5 kg/hp |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 196 hp/t 146 kW/t 5.1 kg/hp |
| BMW8 Series Convertible (G14)840d320 hp | 164 hp/t 122 kW/t 6.1 kg/hp |
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 1,048 km 651 mi |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 1,048 km 651 mi |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 1,048 km 651 mi |
| BMW8 Series Convertible (G14)840d320 hp | 1,048 km 651 mi |
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 496 hp 370 kW | 4.0 s | 295 km/h 183 mph |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 432 hp 322 kW | 4.3 s | 284 km/h 176 mph |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 384 hp 286 kW | 4.6 s | 274 km/h 170 mph |
| BMW8 Series Convertible (G14)840d320 hp | 320 hp 239 kW | 5.2 s | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph |
Scatter chart with performance score on the X axis and practicality score on the Y axis.
| Vehicle | Performance score | Practicality score | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp |
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| BMW8 Series Convertible (G14)840d (Stage 2)432 hp |
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| BMW8 Series Convertible (G14)840d (Stage 1)384 hp |
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| BMW8 Series Convertible (G14)840d320 hp |
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Cars closer to the top-right corner combine stronger performance with better fuel economy scores.
| Vehicle | Performance score | Fuel economy score | ||||||
|---|---|---|---|---|---|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp |
| 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp |
| 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp |
| 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||
| BMW8 Series Convertible (G14)840d320 hp |
| 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||
BMW 8 Series Convertible (G14) 840d (Stage 3) 496 hp is closest to the top-right balance target for performance and fuel economy.
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 |
|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 4.0 s |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 4.3 s |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 4.6 s |
| BMW8 Series Convertible (G14)840d320 hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 5.2 s |
The shaded area favors higher power-to-weight with lower combined fuel consumption.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| BMW8 Series Convertible (G14)840d (Stage 3)496 hp | 254 hp/t 189 kW/t 3.9 kg/hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d (Stage 2)432 hp | 221 hp/t 165 kW/t 4.5 kg/hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d (Stage 1)384 hp | 196 hp/t 146 kW/t 5.1 kg/hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| BMW8 Series Convertible (G14)840d320 hp | 164 hp/t 122 kW/t 6.1 kg/hp | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK |
| Vehicle | BMW8 Series Convertible (G14)840d (Stage 3)496 hp | BMW8 Series Convertible (G14)840d (Stage 2)432 hp | BMW8 Series Convertible (G14)840d (Stage 1)384 hp | BMW8 Series Convertible (G14)840d320 hp | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 496 hp 370 kW | 432 hp 322 kW | 384 hp 286 kW | 320 hp 239 kW | ||||||||||||||||||||||||||||||||
| Torque | 1,088 Nm 802 lb-ft | 952 Nm 702 lb-ft | 850 Nm 627 lb-ft | 680 Nm 502 lb-ft | ||||||||||||||||||||||||||||||||
| Acceleration | 4.0 s | 4.3 s | 4.6 s | 5.2 s | ||||||||||||||||||||||||||||||||
| Top speed | 295 km/h 183 mph | 284 km/h 176 mph | 274 km/h 170 mph | Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph | ||||||||||||||||||||||||||||||||
| Lightness | 1,955 kg 4,310 lb | 1,955 kg 4,310 lb | 1,955 kg 4,310 lb | 1,955 kg 4,310 lb | ||||||||||||||||||||||||||||||||
| Fuel consumption | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | 6.3 L/100 km 37.3 mpg US 44.8 mpg UK | ||||||||||||||||||||||||||||||||
| Practicality |
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| Range score | 1,048 km 651 mi | 1,048 km 651 mi | 1,048 km 651 mi | 1,048 km 651 mi | ||||||||||||||||||||||||||||||||
| CO2 score | 166 g/km | 166 g/km | 166 g/km | 166 g/km | ||||||||||||||||||||||||||||||||
| Trunk score | 350 L 12.4 cu ft | 350 L 12.4 cu ft | 350 L 12.4 cu ft | 350 L 12.4 cu ft | ||||||||||||||||||||||||||||||||
| Power-to-weight score | 254 hp/t 189 kW/t 3.9 kg/hp | 221 hp/t 165 kW/t 4.5 kg/hp | 196 hp/t 146 kW/t 5.1 kg/hp | 164 hp/t 122 kW/t 6.1 kg/hp | ||||||||||||||||||||||||||||||||
| Overall | Fixed score | Fixed score | Fixed score | Fixed score |
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 Convertible (G14) 840d (Stage 3) 496 hp | BMW 8 Series Convertible (G14) 840d (Stage 2) 432 hp | BMW 8 Series Convertible (G14) 840d (Stage 1) 384 hp | BMW 8 Series Convertible (G14) 840d 320 hp |
|---|---|---|---|---|
| Consumption | 6.3 L/100 km37.3 mpg US44.8 mpg UK | 6.3 L/100 km37.3 mpg US44.8 mpg UK | 6.3 L/100 km37.3 mpg US44.8 mpg UK | 6.3 L/100 km37.3 mpg US44.8 mpg UK |
| Cost / 100 km | 11.03 LC100 km | 11.03 LC100 km | 11.03 LC100 km | 11.03 LC100 km |
| Cost / 100 mi | 17.74 LC100 mi | 17.74 LC100 mi | 17.74 LC100 mi | 17.74 LC100 mi |
| Annual fuel used | 945 L250 US gal208 UK gal | 945 L250 US gal208 UK gal | 945 L250 US gal208 UK gal | 945 L250 US gal208 UK gal |
| Annual fuel cost | 1,654 LC/year | 1,654 LC/year | 1,654 LC/year | 1,654 LC/year |
Pros
Cons
No measurable advantages in the available data.























