Among the 86 saloons 2019–2023, the 420i Convertible ranks 37th of 86 in Combined consumption (6.1 L/100, behind the Bmw 420d), 23th of 73 in Tank range (967 km, behind the Bmw 420d), 80th of 86 in 0–100 km/h (8.2 s, behind the BMW M3 Competition xDrive).
G22 · GENERATION 2021 → · SALOON
BMWICE
420i Convertible
184 hp, 8,2 s 0-100 : among the 86 saloons 2019–2023, the 420i Convertible ranks 37th of 86 in Combined consumption, 23th of 73 in Tank range, 80th of 86 in 0–100 km/h. Here is what the Caralogy simulations say.
Power
184hp
300 Nm
0 → 100 km/h
8.2s
VMax 236 km/h
Cons.
6.1L
/100 km
Tank
59L
Technical identity card
Full specifications BMW 420i Convertible
Manufacturer data. Consumption and range estimated from the WLTP cycle; performance simulated by the Caralogy physics engine.
Powertrain
| Architecture | 4 cyl. |
| Displacement | 1,998 cm³ |
| Power | 184 hp |
| Couple | 300 Nm |
| Gearbox | Convertisseur de couple 8 rapports Automatique |
Consumption
| Cons. WLTP | 6.1 L/100km |
| Tank | 59 L |
Performance
| 0 → 100 km/h | 8,2 s |
| VMax | 236 km/h |
Dimensions and environment
| Length | 4,768 mm |
| Wheelbase | 2,851 mm |
| Width | 1,852 mm |
| Height | 1,384 mm |
| Boot | 385 L |
| Kerb weight | 1,690 kg |
| Cd | 0.28 |
| CO₂ WLTP | 140 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 86 saloons, the 420i Convertible ranks (mid-table) in fuel consumption. Caralogy simulates its real-world cost: motorway simulation, consumption simulation and performance simulation.
Caralogy Analysis
Tailored to this vehicle?
Caralogy Verdict
Suitable for
saloon among the best in segment: 23th of 73 in Tank range (967 km).
Less suitable for
Some metrics lag behind the segment. Check the rankings above to identify weak points.
Alternatives to consider
If the priority is Combined consumption, the Bmw 420d (1st with 4.2 L/100) takes the lead. If the priority is Tank range, the Bmw 420d (1st with 1405 km) takes the lead.
Fuel consumption: 6.1 L/100 L/100 (37th of 86 in Combined consumption)
The 420i Convertible consumes 6.1 L/100 on the WLTP combined cycle. The segment reference is the Bmw 420d (4.2 L/100).
Tank range: 967 km (23th of 73 in Tank range)
On a full tank, the 420i Convertible covers 967 km on the combined cycle. The segment reference reaches 1405 km.
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 420i Convertible stands against saloons
Comparison across 86 saloons marketed between 2019–2023.
Combined consumption37e / 86
6.1 L/100
Min 14.9 L/100 · Lexus IS 500 F Sport RWDMax 4.2 L/100 · Bmw 420d
Tank range23e / 73
967 km
Min 500 km · Kia Stinger GT 3.3T AWDMax 1 405 km · Bmw 420d
0–100 km/h80e / 86
8,2 s
Min 8,9 s · Bmw 318d TouringMax 3,5 s · BMW M3 Competition xDrive
Direct rivals (same segment, same energy)
A4 40 TFSI190 hp · 0-100 7.3 s
A5 Avant204 hp · 0-100 7.8 s
A5 Avant204 hp · 0-100 7.7 s
A5 Avant TFSI quattro S tronic 150 kW204 hp · 0-100 7.6 s
Cross-energy alternatives
Same needs, different powertrain.
Model family
The full BMW 4 Series G22 range
Generation G22 launched in 2021. Available versions sorted by energy.
Other versions of the G22
Compare
Popular duels involving the 420i Convertible
Frequently asked questions
BMW 420i Convertible: what you need to know
Well-argued answers to the most asked questions about this model, based on Caralogy data and simulations.
967 km on a full tank (6.1 L/100 on the combined cycle) - 23th of 73 in autonomie du segment.
Running costs depend on your profile (mileage, charging type, city/highway mix). Use the Caralogy consumption simulator for a personalised estimate.
The Bmw 420d leads in Combined consumption (4.2 L/100 vs 6.1 L/100). The choice depends on your priorities: check the 420i Convertible vs Bmw 420d 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.