MG Cyberster vs BMW M4 Convertible

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.

MG Cyberster in South Africa

MG Cyberster

Dual Motor 4WD Roadster Electric Single-Speed Reduction Gear Current
ZAR 1,399,900 ex-showroom
⚡ 375 kW 🔧 725 Nm
VS
BMW M4 Convertible in South Africa

BMW M4 Convertible

M4 Competition Convertible AWD Petrol 8-Speed Automatic Current
ZAR 2,330,000 ex-showroom
⚡ 390 kW 🔧 650 Nm ⛽ 12.5 km/l
+ Add a 3rd car

Decision summary

MG Cyberster vs BMW M4 Convertible: the short answer

Cyberster and M4 Convertible are close on the comparable published fields, so buyer priorities should decide.

Cyberster starts ZAR 930,100 cheaper Cyberster from ZAR 1,399,900 · M4 Convertible from ZAR 2,330,000

Five key differences

Exact selected derivatives
Specification Cyberster M4 Convertible
Maximum Power Cyberster375 kW M4 Convertible390 kW
Maximum Torque Cyberster725 Nm M4 Convertible650 Nm @ 2750-5730 rpm
Engine Size CybersterNot Applicable M4 Convertible2993 cc
Combined Fuel Economy CybersterNot Applicable M4 Convertible12.5 km/l
Ground Clearance Cyberster116 mm M4 Convertible140 mm

Strongest published figure in that row; no road-test winner is implied.

What Each Car Gets Right (and Wrong)

Specification evidence leader

Cyberster

Strengths
  • More powerful engine output
  • Better fuel efficiency
Weak Spots
  • Fewer listed safety features
  • Lower published practicality figures
Best suited to: Published Performance Published Efficiency

M4 Convertible

Strengths
  • Stronger listed safety equipment
  • Stronger published practicality figures
Weak Spots
  • Less powerful engine setup
  • Lower fuel efficiency
Best suited to: Published Practicality

Which One's Right for You?

Cyberster

  • Buyers prioritising the stronger published powertrain figures
  • Buyers prioritising the lower published fuel or energy use

M4 Convertible

  • Buyers prioritising the more complete listed safety equipment
  • Buyers prioritising the stronger published space and capacity figures

Full Specs, Side by Side

Spec Cyberster M4 Convertible
Model Introduced Year 2025 2021
Generation First-generation battery-electric Cyberster roadster in local dual-motor all-wheel-drive form. G83 full-M soft-top convertible with M xDrive and body-specific roof and luggage packaging.
Facelift History South African launch specification introduced as MG's electric halo in 2025. Current updated G83-generation M4 Competition Convertible in the South African AWD configuration.
Facelift Launched Since 2025 Original current-generation version
Facelift Version Ending Current Current
Body Style Two-door, two-seat soft-top roadster Convertible
Model Year 2025 2026
Production Status active active
Segment Electric Sports Roadster Premium Convertible
Vehicle Type Convertible Car
Spec Cyberster M4 Convertible
Length 4535 mm 4801 mm
Width 1913 mm 1887 mm
Height 1329 mm 1399 mm
Wheelbase 2690 mm 2857 mm
Ground Clearance (Default) 116 mm 140 mm
Ground Clearance (With Full Seating Load) Not Officially Disclosed 125 mm
Fuel Tank Capacity 0 l 59 l
Boot/Cargo Space 249 l 385 l
Kerb Weight 1985 kg 2000 kg
Gross Vehicle Weight (GVW) 2210 kg 2345 kg
Payload Capacity 225 kg 420 kg
Towing Capacity 0 kg 1600 kg
Seating Capacity 2 seats 4 seats
Number of Rows 1 rows 2 rows
Doors 2 doors 2 doors
Minimum Turning Radius 5.45 m 5.6 m
Front Headroom 1043 mm 987 mm
Rear Headroom Not Applicable 947 mm
Front Legroom 1070 mm 1036 mm
Rear Legroom Not Applicable 890 mm

In depth: how these cars differ

This Cyberster and M4 Convertible 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: Cyberster 100 vs M4 Convertible 97.

Efficiency index: Cyberster 90 vs M4 Convertible 47.

Safety-equipment index: Cyberster 77 vs M4 Convertible 92.

Practicality index: Cyberster 34 vs M4 Convertible 53.

Ownership-cover index: Cyberster not separately scored vs M4 Convertible not separately scored.

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.

Specification Evidence Index

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

Cyberster leads by 1 points

Cyberster and M4 Convertible are close on the comparable published fields, so buyer priorities should decide.

Evidence leader 75 /100
Lead 1 points
Data 63% source coverage
75
#1 Evidence leader

Cyberster

63% source coverage 3 strong categories
Best at Performance 100 Check Practicality 34
Performance 100
Efficiency 90
Safety 77
Practicality 34
Leads by 1 points
74
#2

M4 Convertible

83% source coverage 2 strong categories
Best at Performance 97 Check Efficiency 47
Performance 97
Efficiency 47
Safety 92
Practicality 53
Performance 24% Safety 22% Practicality 22% Efficiency 17% Ownership 15%
Category leaders What moves the verdict
Performance Cyberster +3 Efficiency Cyberster +43 Safety M4 Convertible +15 Practicality M4 Convertible +19

Close catalogue match. Buyer priorities should decide the outcome.

Why this score View full breakdown
Evidence-index leader

Cyberster

Performance 100/100
Efficiency 90/100
Safety 77/100
Practicality 34/100

M4 Convertible

Performance 97/100
Efficiency 47/100
Safety 92/100
Practicality 53/100

What the evidence means

Evidence index MG Cyberster leads the specification evidence index with 75 pts vs 74 pts for M4 Convertible

In Hagalu's specification evidence index, Cyberster leads. However, M4 Convertible may suit buyers prioritising different confirmed fields. Ultimately, the right choice depends on your driving priorities in South Africa.

Cyberster vs M4 Convertible questions

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.