Among the 48 limousines 2018–2022, the 840i xDrive Convertible ranks 28th of 48 in 0–100 km/h (4.9 s, behind the Porsche Panamera Turbo S), 37th of 48 in Top speed (250 km/h, behind the Porsche Panamera Turbo S), 36th of 48 in Power-to-weight (181 hp/t, behind the Bmw M8 Competition Coupe).
G15 · GENERATION 2020 → · LIMOUSINE
BMWICE
840i xDrive Convertible
340 hp, 4,9 s 0-100 : among the 48 limousines 2018–2022, the 840i xDrive Convertible ranks 28th of 48 in 0–100 km/h, 37th of 48 in Top speed, 36th of 48 in Power-to-weight. Here is what the Caralogy simulations say.
Power
340hp
500 Nm
0 → 100 km/h
4.9s
VMax 250 km/h
Cons.
7.8L
/100 km
Tank
68L
Technical identity card
Full specifications BMW 840i xDrive Convertible
Manufacturer data. Consumption and range estimated from the WLTP cycle; performance simulated by the Caralogy physics engine.
Powertrain
| Architecture | 6 cyl. |
| Displacement | 2,998 cm³ |
| Power | 340 hp |
| Couple | 500 Nm |
| Gearbox | Convertisseur de couple 8 rapports Automatique |
| Transmission | Integrale (AWD) |
Consumption
| Cons. WLTP | 7.8 L/100km |
| Tank | 68 L |
Performance
| 0 → 100 km/h | 4,9 s |
| VMax | 250 km/h |
Dimensions and environment
| Length | 4,843 mm |
| Wheelbase | 2,822 mm |
| Width | 1,902 mm |
| Height | 1,339 mm |
| Boot | 350 L |
| Kerb weight | 1,880 kg |
| Cd | 0.31 |
| CO₂ WLTP | 178 g/km |
Caralogy Methodology
Performance (0-100, top speed) simulated by the Caralogy physics engine (SCx, Crr, real torque curves). Motorway consumption values estimated from the manufacturer WLTP cycle.
See full methodology →Manufacturer data · WLTP-estimated consumption · Caralogy-simulated performance
Among the 48 limousines, the 840i xDrive Convertible ranks (mid-table) in acceleration. Caralogy simulates its real-world performance: motorway simulation, performance simulation and consumption simulation.
Caralogy Analysis
Tailored to this vehicle?
Acceleration: 4.9 s 0-100 (28th of 48 in 0–100 km/h)
In pure acceleration, the 840i xDrive Convertible ranks 28th of 48 in 0–100 km/h, 1.9 s off the reference Porsche Panamera Turbo S (3.0 s).
Top speed: 250 km/h (37th of 48 in Top speed)
Top speed of 250 km/h. The segment reference reaches 315 km/h.
Go beyond this analysis
Recalculate everything for your own profile with the three physics simulators that power this page.
Running cost for your profile
Adjust mileage, driving mix and charging type to estimate your annual energy budget.
Launch simulator →Long-distance trip
Simulate any motorway trip: time, charging stops, total cost.
Simulate a trip →Chronos & accélération
0-100, 0-200, courbe de vitesse, positionnement segment.
Voir la performance →Segment positioning
Where the 840i xDrive Convertible stands against limousines
Comparison across 48 limousines marketed between 2018–2022.
0–100 km/h28e / 48
4,9 s
Min 5,5 s · Bmw 840i ConvertibleMax 3,0 s · Porsche Panamera Turbo S
Top speed37e / 48
250 km/h
Min 250 km/h · Bmw 840d xDriveMax 315 km/h · Porsche Panamera Turbo S
Power-to-weight36e / 48
181 hp/t
Min 164 hp/t · Porsche Panamera 4Max 329 hp/t · Bmw M8 Competition Coupe
Direct rivals (same segment, same energy)
Panamera335 hp · 0-100 5.3 s
Panamera 4330 hp · 0-100 5.4 s
Panamera 4 Sport Turismo330 hp · 0-100 5.1 s
Panamera304 hp · 0-100 5.9 s
Cross-energy alternatives
Same needs, different powertrain.
Model family
The full BMW 8 Series G15 range
Generation G15 launched in 2019. Available versions sorted by energy.
Other versions of the G15
Compare
Popular duels involving the 840i xDrive Convertible
Frequently asked questions
BMW 840i xDrive Convertible: what you need to know
Well-argued answers to the most asked questions about this model, based on Caralogy data and simulations.
Running costs depend on your profile (mileage, charging type, city/highway mix). Use the Caralogy consumption simulator for a personalised estimate.
The Porsche Panamera Turbo S leads in 0–100 km/h (3.0 s vs 4.9 s). The choice depends on your priorities: check the 840i xDrive Convertible vs Porsche Panamera Turbo S duel for a detailed comparison.
Caralogy does not reproduce manufacturer figures: we recalculate every number through physics simulation, starting from SCx, mass and the power curve. This is why our figures at 130 km/h differ from WLTP. Full methodology on the dedicated page.