BMW M4 Convertible vs KIA Sorento

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 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
VS
KIA Sorento in South Africa

KIA Sorento

2.2 CRDi SXL AWD DCT Diesel 8-Speed DCT Current
ZAR 1,299,995 ex-showroom
⚡ 148 kW 🔧 440 Nm ⛽ 15.6 km/l
+ Add a 3rd car

Decision summary

BMW M4 Convertible vs KIA Sorento: the short answer

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

Sorento starts ZAR 1,330,005 cheaper M4 Convertible from ZAR 2,330,000 · Sorento from ZAR 999,995

Five key differences

Exact selected derivatives
Specification M4 Convertible Sorento
Maximum Power M4 Convertible390 kW Sorento148 kW @ 3800 rpm
Maximum Torque M4 Convertible650 Nm @ 2750-5730 rpm Sorento440 Nm @ 1750 rpm
Engine Size M4 Convertible2993 cc Sorento2151 cc
Combined Fuel Economy M4 Convertible12.5 km/l Sorento15.6 km/l
Ground Clearance M4 Convertible140 mm Sorento185 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 M4 Convertible

M4 Competition Convertible AWD

Hagalu editorial rating
3.6/5

Desk research · Exact variant

Editorial assessment, not a customer rating. Not road-tested for this review.

Read the review and score breakdown

KIA Sorento

2.2 CRDi SXL AWD DCT

Hagalu editorial rating Not yet rated

No complete editorial rating is published for this exact variant. This is not a zero score.

How Hagalu rates cars

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)

M4 Convertible

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

Sorento

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

Which One's Right for You?

M4 Convertible

  • Buyers prioritising the stronger published powertrain figures

Sorento

  • Buyers prioritising the lower published fuel or energy use
  • Buyers prioritising the more complete listed safety equipment
  • Buyers prioritising the stronger published space and capacity figures

Full Specs, Side by Side

Spec M4 Convertible Sorento
Model Introduced Year 2021 2021
Generation G83 full-M soft-top convertible with M xDrive and body-specific roof and luggage packaging. Fourth generation (MQ4); global launch 2020, SA 2021
Facelift History Current updated G83-generation M4 Competition Convertible in the South African AWD configuration. Fourth generation (MQ4) launched SA 2021; updated spec 2024
Facelift Launched Since Original current-generation version 2024
Facelift Version Ending Current Current
Body Style Convertible SUV
Model Year 2026 2026
Production Status active active
Segment Premium Convertible SUV
Vehicle Type Car SUV
Drivetrain Note - Drive layout derived from the official derivative naming: 2.2 CRDi SXL AWD DCT
Dealer Stock Note - Flagship grade in the South Africa lineup
Color Note - Glacier White Pearl, Aurora Black Pearl, Steel Grey, Interstellar Grey, Gravity Blue
Tare Mass Kg - 1960 kg
Spec M4 Convertible Sorento
Length 4801 mm 4810 mm
Width 1887 mm 1900 mm
Height 1399 mm 1700 mm
Wheelbase 2857 mm 2815 mm
Ground Clearance (Default) 140 mm 185 mm
Ground Clearance (With Full Seating Load) 125 mm 176 mm
Fuel Tank Capacity 59 l 67 l
Boot/Cargo Space 385 l 219 l
Kerb Weight 2000 kg 1960 kg
Gross Vehicle Weight (GVW) 2345 kg 2550 kg
Payload Capacity 420 kg 620 kg
Towing Capacity 1600 kg 2000 kg
Seating Capacity 4 seats 7 seats
Number of Rows 2 rows 3 rows
Doors 2 doors 5 doors
Minimum Turning Radius 5.6 m 11.2 m
Front Headroom 987 mm 1010 mm
Rear Headroom 947 mm 955 mm
Front Legroom 1036 mm 1040 mm
Rear Legroom 890 mm 855 mm

In depth: how these cars differ

This M4 Convertible and Sorento 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: M4 Convertible 97 vs Sorento 74.

Efficiency index: M4 Convertible 47 vs Sorento 61.

Safety-equipment index: M4 Convertible 92 vs Sorento 100.

Practicality index: M4 Convertible 53 vs Sorento 64.

Ownership-cover index: M4 Convertible not separately scored vs Sorento 71.

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

Sorento leads by 1 points

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

Evidence leader 75 /100
Lead 1 points
Data 99% source coverage
75
#1 Evidence leader

Sorento

99% source coverage 3 strong categories
Best at Safety 100 Check Efficiency 61
Performance 74
Efficiency 61
Safety 100
Practicality 64
Ownership 71
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 M4 Convertible +23 Efficiency Sorento +14 Safety Sorento +8 Practicality Sorento +11

Close catalogue match. Buyer priorities should decide the outcome.

Why this score View full breakdown
Evidence-index leader

Sorento

Performance 74/100
Efficiency 61/100
Safety 100/100
Practicality 64/100
Ownership 71/100

M4 Convertible

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

What the evidence means

Evidence index KIA Sorento leads the specification evidence index with 75 pts vs 74 pts for M4 Convertible

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

M4 Convertible vs Sorento 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.