Among the 46 limousines 2018–2022, the 840i Convertible ranks 45th of 46 in 0–100 km/h (5.5 s, behind the Porsche Panamera Turbo S Sport Turismo), 15th of 46 in Top speed (250 km/h, behind the Porsche Panamera Turbo S Executive), 33th of 46 in Power-to-weight (181 hp/t, behind the Bmw M8 Competition Gran Coupe).
G15 · GENERATION 2020 → · LIMOUSINE
BMWICE
840i Convertible
333 hp, 5,5 s 0-100 : among the 46 limousines 2018–2022, the 840i Convertible ranks 45th of 46 in 0–100 km/h, 15th of 46 in Top speed, 33th of 46 in Power-to-weight. Here is what the Caralogy simulations say.
Power
333hp
500 Nm
0 → 100 km/h
5.5s
VMax 250 km/h
Cons.
7.5L
/100 km
Tank
68L
Technical identity card
Full specifications BMW 840i Convertible
Manufacturer data and values calibrated by the Caralogy simulation engine.
Powertrain
| Architecture | Unknown |
| Displacement | 2,998 cm\u00b3 |
| Power | 333 hp |
| Couple | 500 Nm |
| Gearbox | Torque Converter 8 rapports Automatic |
| Transmission | 840i Convertible |
Consumption
| Cons. WLTP | 7,5 L/100km |
| Tank | 68 L |
Performance
| 0 → 100 km/h | 5,5 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 | 1,840 kg |
| Cd | 0.29 |
| CO₂ WLTP | 172 g/km |
Caralogy Methodology
Motorway and performance values calibrated by the Caralogy physics simulation engine (SCx, Crr, real torque curves).
See full methodology →Manufacturer data · motorway values calibrated by the Caralogy engine
Among the 46 limousines, the 840i Convertible ranks (in the bottom third) in acceleration. Caralogy simulates its real-world performance: motorway simulation, performance simulation and consumption simulation.
Caralogy Analysis
Tailored to this vehicle?
Caralogy Verdict
Suitable for
Demanding drivers: 15th of 46 in Top speed (250 km/h). 15th of 46 in Top speed (250 km/h).
Less suitable for
Frequent urban trips with stop-and-go. At 7,5 L/100 km on the combined cycle, consumption rises in the city without electric assistance. An HEV or PHEV would be more economical for this use profile.
Alternatives to consider
If the priority is 0–100 km/h, the Porsche Panamera Turbo S Sport Turismo (1st with 3.0 s) takes the lead. If the priority is Top speed, the Porsche Panamera Turbo S Executive (1st with 315 km/h) takes the lead.
Acceleration: 5.5 s 0-100 (45th of 46 in 0–100 km/h)
In pure acceleration, the 840i Convertible ranks 45th of 46 in 0–100 km/h, 2.5 s off the reference Porsche Panamera Turbo S Sport Turismo (3.0 s).
Top speed: 250 km/h (15th of 46 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 Convertible stands against limousines
Comparison across 46 limousines marketed between 2018–2022.
0–100 km/h45e / 46
5,5 s
Min 5,5 s · Bmw 840i ConvertibleMax 3,0 s · Porsche Panamera Turbo S Sport Turismo
Top speed15e / 46
250 km/h
Min 250 km/h · Bmw 840i xDrive Gran CoupeMax 315 km/h · Porsche Panamera Turbo S Executive
Power-to-weight33e / 46
181 hp/t
Min 164 hp/t · Porsche Panamera 4 Sport TurismoMax 313 hp/t · Bmw M8 Competition Gran 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 Convertible
Frequently asked questions
BMW 840i 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 Sport Turismo leads in 0–100 km/h (3.0 s vs 5.5 s). The choice depends on your priorities: check the 840i Convertible vs Porsche Panamera Turbo S Sport Turismo 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.