BMW 4 Series Convertible (G23) 420d (190 Hp) Mild Hybrid Steptronic
People\'s Opinion
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BMW 4 Series:
The BMW 4 Series is a range of compact executive cars manufactured by BMW since 2013. The 4 Series was created when BMW spun off the 2-door models of the 3 Series into a separate series. The 4 Series is currently in its second generation.
The original 4 Series concept car was unveiled in January 2013 at the North American International Auto Show in Detroit, Michigan. Both generations have been produced in the coupé, convertible and 5-door liftback body styles. The 4 series body style is very similar to that of the all electric BMW i4....(Read more on Wikipedia)
Convertible (G23) Overview:
BMW 4 Series (Convertible (G23)). With 400 Nm of torque, it offers ample pulling power. It boasts low fuel consumption (~4.85 l/100km). With a weight of 1775 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is good (0–100 km/h in 7.6 s). The top speed reaches 236 km/h. A convertible car with a retractable roof, offering open-air driving experiences. Seating for 4 makes it ideal for daily use.
Performance Verdict
Offers a balanced and refined performance, perfectly adequate for daily driving without being overtly sporty.
Fuel Economy
Outstanding fuel efficiency, making it a highly economical choice for both city and highway driving.
Best Use Case:
Commuting, economical long-distance travel, daily driver.
Pros and Cons:
Pros:
- • Stylish and distinctive design with a premium feel
- • Strong and efficient engine lineup, including potent mild-hybrid options
- • High-quality interior with advanced technology and infotainment
- • Engaging driving dynamics and responsive handling
- • Comfortable for a sports convertible, especially on longer journeys
Cons:
- • Premium pricing places it at the higher end of its segment
- • Rear seats are quite cramped, limiting practicality for adults
- • Ride can be firm on larger wheel options, impacting comfort on rough roads
- • Roof mechanism adds weight and complexity compared to a coupe
- • Some competitors offer a slightly softer, more comfort-focused ride
Specifications:
Specifications are compared to those of the previous generation(Coupe (F32, facelift 2017): 2017 - 2020).
| General: |
| Brand: | BMW |
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| Model: | 4 Series |
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| Generation: | Convertible (G23) |
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| Modification (Engine): | 420d (190 Hp) Mild Hybrid Steptronic |
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| Start of production: | 2020 |
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| End of production: | January, 2024 |
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| Powertrain Architecture: | MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV) |
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| Body type: | Cabriolet |
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| Seats: | 4 |
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| Doors: | 2 |
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| Engine: |
| Engine systems: | Start & Stop System |
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| Power: | 190 Hp @ 4000 rpm. Same horsepower |
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| Power per litre: | 95.2 Hp/l [128mm more] |
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| Torque: | 400 Nm @ 1750-2500 rpm. |
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| Engine Model/Code: | B47D20B More details about the engine B47D20B |
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| Engine displacement: | 1995 |
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| Number of cylinders: | 4 |
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| Engine configuration: | Inline |
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| Number of valves per cylinder: | 4 |
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| Fuel injection system: | Diesel Commonrail |
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| Engine aspiration: | Twin-power turbo, Intercooler |
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| Valvetrain: | DOHC |
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| Engine oil capacity: | 5.5 l |
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| Coolant: | 7 l |
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| Engine layout: | Front, Longitudinal |
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| Cylinder Bore: | 84 mm |
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| Piston Stroke: | 90 mm |
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| Compression ratio: | 16.5:1 |
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| Performance: |
| Fuel Type: | Diesel |
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| Fuel consumption (economy) - urban: | 4.7-5 l/100 km |
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| Fuel consumption (economy) - extra urban: | 3.9-4.3 l/100 km |
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| Combined fuel consumption (WLTP): | 4.9-5.5 l/100 km |
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| Fuel consumption (economy) - combined (NEDC): | 4.2-4.5 l/100 km |
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| Fuel consumption (economy) - urban (NEDC): | 4.7-5 l/100 km |
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| Fuel consumption (economy) - extra urban (NEDC): | 3.9-4.3 l/100 km |
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| Fuel consumption (economy) - combined: | 4.2-4.5 l/100 km |
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| Emission standard: | Euro 6d |
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| Acceleration 0 - 100 km/h: | 7.6 sec |
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| Acceleration 0 - 62 mph: | 7.6 sec |
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| Maximum speed: | 236 km/h |
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| Weight-to-power ratio: | 9.3 kg/Hp, 107 Hp/tonne |
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| Weight-to-torque ratio: | 4.4 kg/Nm, 225.4 Nm/tonne |
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| Acceleration 0 - 60 mph: | 7.2 sec |
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| Space: |
| Kerb Weight: | 1775 |
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| Max. weight: | 2270 |
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| Max load: | 495 |
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| Trunk (boot) space - maximum: | 385 l |
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| Trunk (boot) space - minimum: | 300 l |
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| Permitted trailer load with brakes (12%): | 1600 kg |
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| Fuel tank capacity: | 59 l |
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| Permitted trailer load without brakes: | 750 kg |
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| Permitted towbar download: | 75 kg |
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| Size: |
| Length: | 4768 mm [128mm more] |
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| Width: | 1852 mm [27mm more] |
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| Height: | 1384 mm [8mm less] |
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| Wheelbase: | 2851 mm [41mm more] |
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| Front track: | 1575 mm |
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| Rear (Back) track: | 1611 mm |
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| Ride height (ground clearance): | 124 mm |
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| Minimum turning circle (turning diameter): | 11.4 m [above average] |
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| Powertrain: |
| Drivetrain Architecture | The Internal combustion engine (ICE) and electric motor drive the rear wheels of the car with the ability to work only in mixed mode. |
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| Drive wheel | Rear wheel drive |
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| Number of gears | 8 |
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| Transmission type | Automatic |
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| Gearbox type | Steptronic |
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| Front brakes | Ventilated discs [Best for performance and cooling.] |
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| Rear brakes | Ventilated discs [Best for performance and cooling.] |
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| Assisting systems | ABS (Anti-lock braking system) |
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| Steering type | Steering rack and pinion |
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| Power steering | Electric Steering |
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| Tires size | 225/50 R17 |
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| Wheel rims size | 7.5J x 17 |
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| Front suspension | Coil spring, Transverse stabilizer |
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| Rear suspension | Independent multi-link spring suspension with stabilizer |
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| Electric: |
| Gross battery capacity: | 0.4 kWh |
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| Battery technology: | Lithium-ion (Li-Ion) |
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| Battery location: | Under the front hood |
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| Electric motor power: | 11 Hp |
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| Electric motor Torque: | 25 Nm |
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| Electric motor location: | Front, Longitudinal |
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| Battery voltage: | 48 V |
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