Caralogy does not reproduce manufacturer figures: we recalculate every number through physics simulation. Full methodology on the dedicated page.
I12 · GENERATION 2018 → · SPORTS CAR
BMWPHEV
i8 Roadster
374 hp, 4,6 s 0-100. Discover the Caralogy simulations for the i8 Roadster.
Power
374hp
320 Nm · 143 hp elec
0 → 100 km/h
4.6s
VMax 250 km/h
Total range
815km
of which 440 km elec
Battery + Tank
10.8kWh
+ 30 L tank
Technical identity card
Full specifications BMW i8 Roadster
Manufacturer data and values calibrated by the Caralogy simulation engine.
Powertrain
| Displacement | 1,499 cm³ |
| Puissance électrique | 143 hp |
| Combined power | 374 hp |
| Couple | 320 Nm |
| Gearbox | Convertisseur de couple 6 rapports Automatique |
| Transmission | Propulsion |
Battery and charging
| Battery capacity | 10.8 kWh |
| Range WLTP | 440 km |
| Charge AC max | 3.6 kW |
| Conso élec WLTP | 14.5 kWh/100km |
| Petrol cons. WLTP | 2.0 L/100km |
| Conso thermique | 8.0 L/100km |
| Tank | 30 L |
| EV range motorway | 60 km |
| Total range motorway | 815 km |
Performance
| 0 → 100 km/h | 4,6 s |
| VMax | 250 km/h |
Dimensions and environment
| Length | 4,689 mm |
| Wheelbase | 2,800 mm |
| Width | 1,942 mm |
| Height | 1,289 mm |
| Boot | 88 L |
| Kerb weight | 1,595 kg |
| Cd | 0.28 |
| CO₂ WLTP | 46 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
The i8 Roadster is a plug-in hybrid. Explore its real-world performance via the Caralogy simulators: motorway, consumption, performance.
Caralogy Analysis
Tailored to this vehicle?
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 →Direct rivals (same segment, same energy)
911 Turbo S711 hp · 0-100 2.5 s
911 Carrera375 hp · 0-100 4.3 s
911 Carrera 4375 hp · 0-100 4.2 s
911 Carrera 4 Cabriolet375 hp · 0-100 4.4 s
Cross-energy alternatives
Same needs, different powertrain.
Model family
The full BMW I8 I12 range
Generation I12 launched in 2014. Available versions sorted by energy.
Other versions of the I12
Compare
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Frequently asked questions
BMW i8 Roadster: what you need to know
Well-argued answers to the most asked questions about this model, based on Caralogy data and simulations.