A proper head-to-head in South Africa — compare price, performance,
fuel economy or electric range, safety and the details that shape long-term ownership.
BMW 4 Series Convertible vs Toyota Coaster: the short answer
4 Series Convertible has a modest catalogue-index lead, while Coaster remains close.
4 Series Convertible starts ZAR 61,100 cheaper4 Series Convertible from ZAR 1,146,500 · Coaster from ZAR 1,207,600
Five key differences
Exact selected derivatives
Swipe sideways to compare every column
Specification
4 Series Convertible
Coaster
Maximum Power
4 Series Convertible285 kW
Coaster110 kW
Maximum Torque
4 Series Convertible500 Nm @ 1800-5000 rpm
Coaster420 Nm
Engine Size
4 Series Convertible2998 cc
Coaster2755 cc
Combined Fuel Economy
4 Series Convertible12.5 km/l
Coaster7.5 km/l
Ground Clearance
4 Series Convertible140 mm
Coaster180 mm
Strongest published figure in that row; no road-test winner is implied.
Independent editorial assessment
Hagalu editorial ratings
When a variant is selected, its rating out of five applies only to that exact derivative; a model-range review is not inherited. Editorial ratings are separate from the Specification Evidence Index out of 100 and are not customer ratings.
BMW 4 Series Convertible
M440i xDrive Convertible
Hagalu editorial rating
3.7/5★★★★★★★★★★
Desk research · Exact variant
Hagalu Editorial Team ·
Editorial assessment, not a customer rating. Not road-tested for this review.
Not yet rated means a complete review is not published; it does not mean the vehicle scored zero. Read the rating methodology.
What Each Car Gets Right (and Wrong)
Specification evidence leader
4 Series Convertible
Strengths
More powerful engine output
Better fuel efficiency
Stronger listed safety equipment
Weak Spots
Lower published practicality figures
Best suited to:Published PerformancePublished Efficiency
Coaster
Strengths
Stronger published practicality figures
Weak Spots
Less powerful engine setup
Lower fuel efficiency
Fewer listed safety features
Best suited to:Published Practicality
Which One's Right for You?
4 Series Convertible
Buyers prioritising the stronger published powertrain figures
Buyers prioritising the lower published fuel or energy use
Buyers prioritising the more complete listed safety equipment
Coaster
Buyers prioritising the stronger published space and capacity figures
Full Specs, Side by Side
Open a category, then swipe sideways to compare every column
Spec
4 Series Convertible
Coaster
Model Introduced Year
2020
Current local generation year not confirmed
Generation
G23 four-seat premium convertible related to the G22 Coupé but with body- and roof-specific packaging.
Current South African Coaster listing; generation notes should be kept tied to the local model year and confirmed derivative data.
Facelift History
Current updated G23-generation BMW 4 Series Convertible offered in South Africa with a fabric soft top.
Model-year updates can affect trim, wheels, screens, safety equipment and colours. Use the latest South African price list when checking a specific vehicle.
Facelift Launched Since
Original current-generation version
Original current-generation version
Facelift Version Ending
Current
Current
Body Style
Convertible
Midibus
Model Year
2026
2026
Production Status
active
active
Segment
Premium Convertible
Bus
Vehicle Type
Car
Bus
Color Note
-
Colour availability changes by model year, production batch and dealer stock, check the current colour selector before ordering.
Dealer Stock Note
-
Top grade in the South Africa lineup
Tare Mass Kg
-
3670 kg
Spec
4 Series Convertible
Coaster
Length
4770 mm
6990 mm
Width
1852 mm
2080 mm
Height
1394 mm
2635 mm
Wheelbase
2851 mm
3935 mm
Ground Clearance (Default)
140 mm
180 mm
Ground Clearance (With Full Seating Load)
125 mm
125 mm
Fuel Tank Capacity
59 l
95 l
Boot/Cargo Space
385 l
472 l
Kerb Weight
1965 kg
3670 kg
Gross Vehicle Weight (GVW)
2375 kg
5325 kg
Payload Capacity
485 kg
1655 kg
Towing Capacity
1800 kg
1400 kg
Seating Capacity
4 seats
23 seats
Number of Rows
2 rows
3 rows
Doors
2 doors
2 doors
Minimum Turning Radius
5.6 m
6.5 m
Front Headroom
997 mm
981 mm
Rear Headroom
942 mm
953 mm
Front Legroom
1049 mm
1045 mm
Rear Legroom
899 mm
896 mm
Spec
4 Series Convertible
Coaster
Engine
BMW turbocharged engine
Turbocharged Petrol
Engine Code
B48
Market-specific engine family
Fuel Type
Petrol
Diesel
Hybrid System
Not Applicable
Not Applicable
Engine Displacement
2998 cc
2755 cc
Cylinders
6
4
Cylinder Layout
Inline
Inline
Valves
16
16
Valves per Cylinder
4
4
Aspiration
Turbocharged
Turbocharged
Fuel System
Direct injection
Common-rail direct injection
Compression Ratio
10.5:1
10.5:1
Bore
82.0 mm
82.0 mm
Stroke
94.6 mm
94.6 mm
Maximum Power
285 kW
110 kW
Maximum Torque
500 Nm @ 1800-5000 rpm
420 Nm
Combined Power
Not Applicable
Not Applicable
Combined Torque
Not Applicable
Not Applicable
Motor Type
Not Applicable
Not Applicable
Number of Motors
Not Applicable
Not Applicable
Motor Location
Not Applicable
Not Applicable
Drive Type
AWD
FWD
Transmission
8-Speed Automatic
6-Speed Automatic
Top Speed
250 km/h
210 km/h
0-100 km/h
4.9 sec
7.8 sec
Quarter Mile
12.2 sec
15.5 sec
Drive Modes
Eco, Comfort, Sport
Eco, Comfort, Sport
Launch Control
No
No
Rev Limiter
7000 rpm
4800 rpm
Power-to-Weight Ratio
100 kW/tonne
30 kW/tonne
Torque-to-Weight Ratio
220 Nm/tonne
114.4 Nm/tonne
Battery Capacity
Not Applicable
Not Applicable
Usable Battery Capacity
Not Applicable
Not Applicable
Battery Type
Not Applicable
Not Applicable
Battery Voltage
Not Applicable
Not Applicable
Electric Range
Not Applicable
Not Applicable
AC Charging Power
Not Applicable
Not Applicable
DC Charging Power
Not Applicable
Not Applicable
AC Charging Time
Not Applicable
Not Applicable
DC Charging Time
Not Applicable
Not Applicable
Regenerative Braking
Not Applicable
Not Applicable
Spec
4 Series Convertible
Coaster
Gearbox
8-Speed Automatic
Automatic
Drivetrain Layout
All-wheel drive
RWD/
LSD Available
Not Applicable
Not Applicable
Transfer Case
Not Applicable
Not Applicable
Differential Lock
Not Applicable
Not Applicable
Paddle Shifters
Yes
Not Applicable
Final Drive Ratio
Yes
Not Applicable
Number of Gears
8
6
Transmission Type
Automatic
Automatic
Clutch Type
Yes
Not Applicable
Gear Shift Indicator
Yes
Not Applicable
Gear Shift Type
Automatic selector
Automatic
Drivetrain
AWD
RWD/
4WD Engagement
Not Applicable
Not Applicable
4WD Hi Range
Not Applicable
Not Applicable
4WD Lo Range
Not Applicable
Not Applicable
4WD Selector
Not Applicable
Not Applicable
Automatic Shift Paddles
Yes
Not Applicable
Front Differential Lock
Not Applicable
Not Applicable
Gearbox Type
Automatic
Automatic
Low Range Ratio
Not Applicable
Not Applicable
Low Range
Not Applicable
Not Applicable
Axle Layout
Yes
RWD/
Rear Differential Lock
Not Applicable
Not Applicable
Transmission Speeds
8
6
Differential Type Front
-
Not Available
Differential Type Rear
-
Not Available
Transfer Case Guard
-
Not Available
Spec
4 Series Convertible
Coaster
Claimed Mileage
12.5 km/l
7.5 km/l
City Mileage
10.5 km/l
6.1 km/l
Highway Mileage
15.0 km/l
8.8 km/l
Fuel Tank Capacity
59 l
95 l
Emission Standard
Euro 6
Not Applicable
AdBlue Tank Capacity
Not Applicable
Not Applicable
Auto Start Stop
Standard
Not Applicable
Real-world Mileage
12.5 km/l
7.5 km/l
Charging Port Type
Not Applicable
Not Applicable
Charging Type
Not Applicable
Not Applicable
Fuel Tank Litres
59
95
Combined Driving Range
Not Applicable
Not Applicable
Electric Consumption
Not Applicable
Not Applicable
Range Real World Highway
360 km
Not Applicable
Range Real World Mixed
420 km
Not Applicable
Spec
4 Series Convertible
Coaster
Airbags
6
Driver and passenger airbags
ABS
Standard
Standard
Electronic Stability Control
Standard
Not Available
Traction Control
Standard
Not Available
Hill Descent Control
Yes
Not Available
Hill Start Assist
Standard
Not Available
Child Safety Lock
Standard
Not Available
ISOFIX Mounts
Standard
Not Available
Brake Assist
Standard
Not Available
Tyre Pressure Monitor
Standard
Not Available
Engine Immobiliser
Standard
Not Available
Seatbelt Warning All Seats
Standard
Not Available
Front Parking Sensors
Yes
Not Available
AEB
Yes
Not Available
BA
Standard
Not Available
Brake Override System
Yes
Not Available
Curtain Airbags
Yes
Not Available
Driver Airbag
Yes
Standard
EBD
Standard
Standard
Engine Immobiliser
Standard
Not Available
Hill Hold
Standard
Not Available
Passenger Airbag
Yes
Standard
Rear Cross Traffic Alert
Yes
Not Available
Seatbelt Pretensioners
Yes
Not Available
Seatbelt Reminder
Standard
Not Available
Side Airbags
Yes
Not Available
Stability Control
Standard
Not Available
TCS
Standard
Not Available
Knee Airbag
Yes
Not Available
ABS EBD
Standard
Standard
Spec
4 Series Convertible
Coaster
Cruise Control
Standard
Not Available
Adaptive Cruise Control
Yes
Not Available
Lane Keep Assist
Yes
Not Available
Lane Departure Warning
Yes
Not Available
Blind Spot Monitoring
Yes
Not Available
Rear Cross Traffic Alert
Yes
Not Available
Parking Sensors
Yes
Not Available
Rear View Camera
Yes
Not Available
360 Degree Camera
Yes
Not Available
Autonomous Emergency Braking
Yes
Not Available
Driver Fatigue Alert
Yes
Not Available
Traffic Sign Recognition
Yes
Not Available
Auto Highbeam
Standard
Not Available
Auto Wipers
Yes
Not Available
Rear Parking Sensors
Yes
Not Available
Reverse Camera
Yes
Not Available
Adaptive Cruise Control
Yes
Not Available
Park Assist
Parking Assist Plus
Not Available
Around View Monitor
Yes
Not Available
Blind Spot Warning
Yes
Not Available
Forward Collision Warning
Yes
Not Available
EV Mode
-
Not Available
Spec
4 Series Convertible
Coaster
Seat Material
Leather 'Vernasca' Black with decorative stitching
Grey PVC or fabric depending on specification
Heated Seats
Front
Not Applicable
Ventilated Seats
Yes
Not Applicable
Ambient Lighting
Standard
Not Applicable
Steering Wheel Material
Yes
Not Applicable
60 40 Split Seat
Yes
Not Applicable
Driver Seat Adjustment
Electric multi-way
Not Applicable
Passenger Seat Adjustment
Electric multi-way
Not Applicable
Seat Trim
Yes
Grey PVC or fabric depending on specification
Steering Type
-
Standard
Front Shoulder Room
-
Not Applicable
Rear Shoulder Room
-
Not Applicable
Rear USB Ports
-
Standard
Interior Colour Options
-
3
Fabric Seats
-
Grey PVC or fabric depending on specification
Interior Courtesy Lamps
-
Cabin trim, seating material, screen layout and driver-assistance equipment vary by derivative. Compare the chosen Coaster grade before assuming a feature is included.
Leather Accented Seat Trim
-
Grey PVC or fabric depending on specification
Floor Trim
-
Grey PVC
Interior Colours
-
3
Spec
4 Series Convertible
Coaster
Climate Control
Standard
Overhead vents for all seats
Power Windows
Standard
Not Available
Keyless Entry
Comfort Access
Not Available
Push Button Start
Yes
Not Available
Wireless Charging
Standard
Not Available
Sunroof
Panoramic
Not Available
Electric Tailgate
No
Not Available
Rain Sensing Wipers
Yes
Not Available
AC Type
Standard
Overhead vents for all seats
Load Bed Length
-
Not Applicable
Load Bed Width
-
Not Applicable
Boot Space Seats Folded
-
Not Applicable
Adaptive Dampers
-
Not Available
Climate Zones
-
Overhead vents for all seats
Fuel Consumption Combined
-
Not Available
Performance Data Logger
-
Not Available
Rev Matching
-
Not Available
Seat Type
-
Grey PVC or fabric depending on specification
Air Conditioning
Standard
Overhead vents for all seats
Battery Preconditioning
-
Not Available
Bed Extender
-
Not Available
Canopy Fitment
-
Not Available
Diff Lock
-
Not Available
Difflock
-
Not Available
Front Diff Lock
-
Not Available
Intelligent Battery System
-
Not Available
Load Bed Cover
-
Not Available
Load Bed Light
-
Not Available
Load Bed Steps
-
Not Available
Loadbox Depth Mm
-
Not Available
Loadbox Length Mm
-
Not Applicable
Loadbox Rope Hooks
-
Not Available
Loadbox Tiedown Brackets
-
Not Available
Loadbox Width Mm
-
Not Applicable
Manual Aircon
-
Overhead vents for all seats
One Pedal Driving
-
Not Available
Cabin Heating
-
Available above all seats
Rear Diff Lock
-
Not Available
Rear Electric Motor
-
Not Available
Regenerative Braking Levels
-
Not Available
Source Model Column
-
coaster
Sport Plus Mode
-
Not Available
Sports Bar
-
Not Available
Tailgate Damper
-
Not Available
Tailgate Lock
-
Not Available
Tow Bar Type
-
Not Available
Trim Level
-
top
Variant Role
-
Core range derivative
Vehicle To Grid
-
Not Available
Vehicle To Load
-
Not Available
Spec
4 Series Convertible
Coaster
Infotainment System
Widescreen Display
Standard
Apple CarPlay
Yes
Not Available
Android Auto
Yes
Not Available
Bluetooth Connectivity
Yes
Standard
Number of Speakers
6
Not Available
Digital Instrument Cluster
BMW Live Cockpit Professional (includes head-up display)
Not Applicable
USB Ports
2
Standard
Infotainment Screen
14.9
Standard
Touchscreen
14.9
Standard
AUX Input
-
Standard
Infotainment Screen Size
14.9
Standard
Infotainment Display
-
Standard
Rear Usb
-
Standard
Display Audio
-
Standard
Front Rear USB Charge Ports
-
Standard
Connected Services
-
Toyota Connect
Smartphone Connectivity
-
Standard
Spec
4 Series Convertible
Coaster
LED Headlamps
Yes
Not Available
Daytime Running Lamps
Standard
Not Available
Fog Lamps
Yes
Not Available
Roof Rails
Yes
Not Available
Exterior Colour Options
Multiple manufacturer colours
3
Headlights
Yes
Not Available
Panoramic Sunroof
Yes
Not Available
Body Type
-
Bus
Exterior Colour Options
-
1
Load Bed Liner
-
Not Available
Active Exhaust
-
Not Available
Spec
4 Series Convertible
Coaster
Approach Angle
Not Applicable
Not Available
Departure Angle
Not Applicable
Not Available
Wading Depth
Not Applicable
Not Available
Terrain Modes
Not Applicable
Not Available
Locking Differential
Not Applicable
Not Applicable
4WD System Type
All-wheel drive
Not Applicable
Breakover Angle
Not Applicable
Not Available
Energy Recovery Display
-
Not Available
Front Skid Plate Guard
-
Not Available
Ground Clearance Max
-
185 mm
Ground Clearance Min
-
185 mm
Off Road Descent Control
-
Not Available
Off Road Traction Assist
-
Not Available
Crawl Control
-
Not Available
Rear Skid Plate Guard
-
Not Available
Skid Plates Fuel Tank
-
Not Available
Skid Plates Transfer Case
-
Not Available
Terrain Mode Mud
-
Not Available
Terrain Mode Normal
-
Not Available
Terrain Mode Rock
-
Not Available
Terrain Mode Sand
-
Not Available
Terrain Mode Snow
-
Not Available
Terrain Response System
-
Not Available
Underbody Camera
-
Not Available
Spec
4 Series Convertible
Coaster
Tyre Size
Runflat tyres
Not Available
Front Brake Type
Ventilated disc
Not Available
Rear Brake Type
Disc
Not Available
Spare Wheel Type
Tyre repair kit
Not Available
Wheel Rim Size
19" M Lt/Aly wheels double spoke 792 M Bicolour Jet Black / MT and runflat tyres
Not Available
Handbrake Type
Electronic
Not Applicable
Fifth Wheel Prep
-
Not Available
Spec
4 Series Convertible
Coaster
Front Suspension
M Sports Suspension
Double wishbone
Rear Suspension
M Sports Suspension
Leaf spring
Front Track Width
-
Not Applicable
Rear Track Width
-
Not Applicable
Power Steering
-
Standard
Front Spring Type
-
Double wishbone
Rear Spring Type
-
Leaf spring
Front Suspension Type
M Sports Suspension
Double wishbone
MagneRide Damping
-
Not Available
Rear Axle Type
-
Leaf spring
Rear Suspension Type
M Sports Suspension
Leaf spring
Suspension
-
Double wishbone
Spec
4 Series Convertible
Coaster
CO2 Emissions
192 g/km
Not Applicable
Hybrid System Type
-
Not Available
Fuel Octane Requirement
-
Diesel
Spec
4 Series Convertible
Coaster
Service Plan
5 years / 100000 km BMW Motorplan
9 services / 90 000 km
Maintenance Plan
-
9 services / 90 000 km
Service Plan Duration
5 years / 100000 km BMW Motorplan
9 services / 90 000 km
Service Plan Distance
5 years / 100000 km BMW Motorplan
9 services / 90 000 km
Spec
4 Series Convertible
Coaster
Ownership Role
Private and enthusiast
Top
Price Zar
1642500 ZAR
1207600 ZAR
Pricing Role
Current recommended retail price
Current listed price
Starting Price
1642500
1207600
Starting Price Zar
1642500
1207600
Spec
4 Series Convertible
Coaster
Warranty
Yes
3 years / 100 000 km
Warranty Years
Yes
3 years / 100 000 km
Warranty Kilometers
Yes
3 years / 100 000 km
Roadside Assistance
-
3 Years
Basic Warranty
Yes
3 years / 100 000 km
Roadside Assistance
-
3 Years
Warranty Roadside Assistance
-
3 Years
In depth: how these cars differ
This 4 Series Convertible and Coaster comparison uses the exact derivatives selected above for South Africa. The catalogue index covers performance, efficiency, safety equipment, practicality and ownership cover only where comparable source-backed fields are present.
Performance index: 4 Series Convertible 97 vs Coaster 64.
Efficiency index: 4 Series Convertible 49 vs Coaster 38.
Safety-equipment index: 4 Series Convertible 92 vs Coaster 88.
Practicality index: 4 Series Convertible 55 vs Coaster 76.
Ownership-cover index: 4 Series Convertible not separately scored vs Coaster 43.
These figures are Hagalu catalogue-comparison indicators, not customer ratings, crash-test scores, resale guarantees or a substitute for a road test. Each page shows its weighted source coverage beside the result.
Model imagery
4 Series Convertible and Coaster image comparison
Open an image for its full canonical file or visit the model page for the complete vehicle record.
A transparent comparison of published catalogue fields. This is not a road-test score, owner rating or editorial review rating, and it appears only when every vehicle clears the same comparable-data threshold.
Evidence / 100
Evidence-index readout
4 Series Convertible leads by 11 points
4 Series Convertible has a modest catalogue-index lead, while Coaster remains close.
Performance
4 Series Convertible +33
Efficiency
4 Series Convertible +11
Safety
4 Series Convertible +4
Practicality
Coaster +21
Moderate difference in the source-backed catalogue index.
Why this scoreView full breakdown
Evidence-index leader
4 Series Convertible
Performance
97/100
Efficiency
49/100
Safety
92/100
Practicality
55/100
Coaster
Performance
64/100
Efficiency
38/100
Safety
88/100
Practicality
76/100
Ownership
43/100
What the evidence means
Evidence indexBMW 4 Series Convertible
leads the specification evidence index with 75 pts
vs 64 pts for Coaster
In Hagalu's specification evidence index, 4 Series Convertible leads. However, Coaster may suit buyers prioritising different confirmed fields. Ultimately, the right choice depends on your driving priorities in South Africa.
Related comparisons
Continue with closely related South Africa models and comparable body styles.
There is no universal winner. Use the comparison table to match the models and available derivatives in South Africa on price, safety equipment, space, powertrain and ownership cover. The category indicators summarise published catalogue data; they are not a road test or customer rating.
Compare the published consumption or mileage rows for the exact derivatives using the same unit and test basis. A catalogue figure is useful for like-for-like comparison, but traffic, speed, load, weather and driving style can change actual fuel use.
Compare only equipment explicitly listed for each derivative, including airbags, stability control and driver-assistance systems. Confirm the exact trim with the manufacturer, and treat any independent crash-test result separately because equipment and ratings can differ by market.
A reliable five-year total cannot be calculated from catalogue data alone. Add the exact purchase and finance cost, fuel or electricity, insurance quotes, scheduled servicing, tyres and expected resale value. Check whether the selected derivative includes a service or maintenance plan.
Use the seating, boot or load-space, ISOFIX and safety rows as a first check. Then test the exact cars with your child seats, passengers and typical luggage, because published dimensions do not show every access or comfort difference.
Compare the published power, torque and 0–100 km/h rows when they are available for both exact derivatives. Vehicle weight, gearing and power delivery also matter, so catalogue outputs alone do not establish real-world overtaking or response.
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