A proper head-to-head in South Africa — we cover price, performance,
petrol economy, safety and what it'll actually cost you to own each one long term.
Sonet starts ZAR 303900 cheaperFronx from ZAR 303,900 · Sonet from ZAR 299,995
Key Specs Side by Side
The specs that matter most — highlighted where one car leads.
Spec
Fronx
Sonet
Engine Power
77
85 kW
Torque
138
143 Nm
Engine Size
1462
1497
Claimed Mileage
17.5
16.9
Ground Clearance
170
211
Boot Space
304
392
Airbags
6
6
Kerb Weight
970
1270
Seating Capacity
Available
5
Warranty
5
7
= leads in this spec
The Overall Score — Here's How They Stack Up
🏆 Winner
#1
Sonet
58
/ 100
+4
pts
#2
Fronx
54
/ 100
Very close match. Final decision depends on buyer preference.
The Bottom Line
Both Fronx and Sonet are extremely closely matched, making the final choice dependent on buyer preference.
Where They Actually Differ
Performance
Sonet
+1 pts
Efficiency
Equal
Safety
Equal
Practicality
Sonet
+3 pts
Ownership
Equal
Score Breakdown by Category
🏆 Overall Winner
Sonet
Performance
7/20
Efficiency
0/20
Safety
18/20
Practicality
13/20
Ownership
20/20
Fronx
Performance
6/20
Efficiency
0/20
Safety
18/20
Practicality
10/20
Ownership
20/20
What Each Car Gets Right (and Wrong)
Fronx
Strengths
Nothing stands out clearly here.
Weak Spots
Less powerful engine setup
Less practical in daily usage
Best suited to:General Use
🏆 Overall Winner
Sonet
Strengths
More powerful engine output
More practical for daily use
Weak Spots
No obvious weak spots to flag.
Best suited to:Highway DrivingFamily Usage
Which One's Right for You?
Fronx
Buyers looking for a balanced all-round vehicle
Sonet
Drivers who prioritise strong highway performance and overtaking power
Large families needing more practicality and usability
Full Specs, Side by Side
Spec
Fronx
Sonet
Engine
1.5L K15B 4-Cylinder Petrol
1.5 G4LC Inline-4 DOHC Petrol NA
Engine Type
Inline 4 Cylinder Naturally Aspirated
Inline 4 Cylinder Naturally Aspirated
Engine Code
K15B
G4LC
Cylinder Layout
Inline 4 (I4)
Inline 4 (I4)
Engine Aspiration
Naturally Aspirated
Naturally Aspirated
Displacement
1462
1497
Cylinders
4
4
Valves per Cylinder
4
16
Cylinder Bore
74.0
75.0
Piston Stroke
85.1
84.5
Compression Ratio
10.5:1
13.0:1
Engine Position
Transverse Front-Mounted
Front Transverse
Variable Valve Timing
VVT on Intake Camshaft
CVVT
Fuel System
Multi-Point Fuel Injection (MPFI)
Gasoline Direct Injection
Turbocharger
Not Applicable
No
Power
77
85 kW
Power @ RPM
6,000 rpm
6,300 rpm
Power
103
114
Torque
138
143 Nm
Torque @ RPM
4,400 rpm
4,000 rpm
Maximum Engine RPM
6800
6,500 rpm
Engine Oil Capacity
3.7
4.5
Fuel Grade Required
93 RON Unleaded Petrol
93 Octane
Top Speed
175
172
0-100 km/h
13.0
11.2
Engine Type Config
Available
Inline 4 Cylinder (I4) DOHC 16-Valve
0–100 km/h
Available
11.2
Battery Capacity
Available
N/A
Charging Port
Available
N/A
AC Charging Time
Available
N/A
Engine Displacement
Available
1497
EV Range
Available
N/A
Spec
Fronx
Sonet
Transmission
4-Speed Automatic
Intelligent Variable Transmission (IVT)
Transmission Type
4-Speed Automatic
Continuously Variable Transmission
Number of Gears
4
CVT
Drive Type
FWD
FWD
Drivetrain Layout
Front Wheel Drive
FWD
Final Drive Ratio
4.388:1
3.56
Steering Turns Lock to Lock
2.8
15.1:1
Clutch Type
Single Dry Plate Diaphragm
Torque Converter
LSD Available
Not Available
No
Differential Lock
Not Available
No
Transfer Case
Not Applicable
N/A
Paddle Shifters
Not Available
No
Drivetrain
Available
FWD
Transmission
Available
Intelligent Variable Transmission (IVT)
Spec
Fronx
Sonet
Length
3995
3995
Width
1765
1790
Height
1550
1635
Wheelbase
2520
2500
Ground Clearance
170
211
Kerb Weight
970
1270
Gross Vehicle Weight
1420
1710
Max Payload
480
N/A
Front Track Width
1510
1544
Rear Track Width
1510
1536
Turning Radius
5.1
10.4
Number of Doors
5
5
Seating Capacity
5
5
Boot Space
304
392
Boot Space Seats Folded
704
1143
Towing Capacity
0
N/A
Load Bed Length
0
N/A
Load Bed Width
0
N/A
Front Legroom
1043
1030
Rear Legroom
890
860
Front Headroom
975
990
Rear Headroom
955
950
Front Shoulder Room
1395
1380
Rear Shoulder Room
1370
1330
Boot Volume
Available
392
Doors
Available
5
Seats
Available
5
Front Overhang
Available
800
Fuel Tank Capacity
Available
45
Rear Overhang
Available
695
Spec
Fronx
Sonet
Claimed Mileage
17.5
16.9
City Mileage
14.3
13.7
Highway Mileage
20.8
20.0
Fuel Tank Capacity
37
45
Emission Standard
Euro 5
Euro 6
AdBlue Tank Capacity
0
No
Auto Start Stop
Not Available
Yes
Average Fuel Consumption
Available
5.9
Claimed Fuel Consumption
Available
5.9
Distance To Empty
Available
N/A
Low Fuel Warning
Available
Yes
Fuel Efficiency
Available
5.9 L/100km
Real-world Mileage
Available
7.1
Spec
Fronx
Sonet
Airbags
6
6
ABS
Standard
Yes
Electronic Stability Control
Standard
Yes
Traction Control
Standard
Yes
Hill Start Assist
Standard
Yes
Hill Descent Control
Not Available
No
Child Safety Lock
Standard
Yes
ISOFIX Mounts
2 Rear ISOFIX Points
Yes
Brake Assist
Standard
Yes
Tyre Pressure Monitor
Standard
Yes
Engine Immobiliser
Standard
Yes
Alarm System
Standard
Yes
Central Locking
Remote Central Locking
Yes
Side Impact Beams
Standard
Yes
Seatbelt Warning All Seats
All Seats
Yes
Speed Alert System
Standard — Audible Warning at 120 km/h
Yes
Pedestrian Detection AEB
Not Available
Yes
Front Parking Sensors
Not Available
Yes
Safety Rating
Not Independently Rated
5
Whiplash Protection
Active Head Restraints on Front Seats
Yes
Lane Change Warning
Not Available
Yes
AEB
Available
Yes
BA
Available
Yes
Brake Override System
Available
Yes
Curtain Airbags
Available
Yes
Driver Airbag
Available
Yes
EBD
Available
Yes
Engine Immobiliser
Available
Yes
Fatigue Detection
Available
Yes
Hill Hold
Available
Yes
Passenger Airbag
Available
Yes
Rear Cross Traffic Alert
Available
Yes
Seatbelt Pretensioners
Available
Yes
Side Airbags
Available
Yes
TCS
Available
Yes
Blind Spot Monitoring
Available
Yes
Knee Airbag
Available
No
Spec
Fronx
Sonet
Cruise Control
Standard
Yes
Adaptive Cruise Control
Not Available
Yes
Lane Keep Assist
Not Available
Yes
Lane Departure Warning
Not Available
Yes
Blind Spot Monitoring
Not Available
Yes
Rear Cross Traffic Alert
Not Available
Yes
Parking Sensors
Rear Ultrasonic Sensors
Yes
Rear View Camera
360-Degree Surround View
Yes
360 Degree Camera
360-Degree Surround View Camera
Yes
Autonomous Emergency Braking
Not Available
Yes
Driver Fatigue Alert
Not Available
Yes
Traffic Sign Recognition
Not Available
No
Auto Highbeam
Available
Yes
Auto Lights
Available
Yes
Auto Wipers
Available
Yes
Drive Modes
Available
Yes
Eco Mode
Available
Yes
EV Mode
Available
No
Rear Parking Sensors
Available
Yes
Reverse Camera
Available
Yes
Sport Mode
Available
No
Adaptive Cruise Control
Available
Yes
Park Assist
Available
Yes
Spec
Fronx
Sonet
Seat Material
Leatherette Seat Trim
Leather
Seat Adjustment
Manual 6-Way Driver Adjustment
8-Way Power
Heated Seats
Not Available
Yes
Ventilated Seats
Not Available
Yes
Steering Type
Electric Power Assisted Steering (EPAS)
Electric Power Assisted
Steering Adjustment
Tilt and Telescopic
Tilt and Telescopic
Ambient Lighting
Not Available
Yes
Folding Rear Seats
60:40 Split Fold
Yes
Front Armrest
Standard Centre Armrest
Centre Armrest
Rear Armrest
Integrated in Seat Back
Yes
Cup Holders
4
4
Rear AC Vents
Not Available
No
Rear USB Ports
0
Yes
Steering Wheel Material
Urethane
Leather
Instrument Cluster Type
Analogue with Digital Trip Display
Digital
Interior Colour Options
2
Black
Driver Lumbar Support
Not Available
Yes
Door Map Pockets
All Four Door Pockets
Yes
60 40 Split Seat
Available
Yes
Adjustable Driver Seat
Available
8-Way Power
Adjustable Front Seat
Available
4-Way Manual
Cooled Seats
Available
Yes
Driver Seat Adjustment
Available
8-Way Power
Fabric Seats
Available
No
Front Headrest
Available
Adjustable
Leather Seats
Available
Yes
Memory Seats
Available
Yes
Passenger Seat Adjustment
Available
4-Way Manual
Rear Headrest
Available
Adjustable
Spec
Fronx
Sonet
Climate Control
Manual Air Conditioning
Yes
Power Windows
All Four Windows
Yes
Keyless Entry
Not Available
Yes
Push Button Start
Not Available
Yes
Wireless Charging
Not Available
Yes
Sunroof
Not Available
No
Electric Tailgate
Not Available
No
Automatic Headlamps
Standard
Yes
Rain Sensing Wipers
Standard
Yes
Auto Dimming Mirror
Not Available
No
Rear Window Defroster
Standard
Yes
Electric Mirror Folding
Manual Fold
Yes
Driver Seat Height Adjustment
Standard — Driver Height Adjustable
Yes
Follow Me Home Headlamps
Not Available
Yes
12V Accessory Socket
1 x 12V Socket
Yes
Speed Limiter
Standard
Yes
AC Type
Available
Automatic Climate Control
Adaptive Dampers
Available
No
Aero Kit
Available
No
Auto Dimming Irvm
Available
No
Boot Opener
Available
Remote
Chrome Exterior Highlights
Available
No
Chrome Grille
Available
Yes
Climate Zones
Available
2
Door Ajar Warning
Available
Yes
Drag Coefficient
Available
0.34
Driver Display
Available
Digital Cluster
Electric Folding Mirrors
Available
Yes
Engine Check Warning
Available
Yes
Engine Start Button Illumination
Available
Yes
Engine Start Stop
Available
Yes
Engine Start Stop Button
Available
Yes
Engine Warranty
Available
7 Years / 150,000 km
Exhaust Finish
Available
-
Exhaust Type
Available
-
Front Armrest
Available
Yes
Front Power Outlet
150
Yes
Fuel Consumption Combined
Available
5.9
Fuel Lid Opener
Available
Remote
Gear Shift Type
Available
Automatic
Glovebox Cooling
Available
No
Ground Clearance Unladen
Available
211
Headlamp Height Adjust
Available
Yes
Headlamp Washer
Available
No
Headrest Adjustable
Available
Yes
Heads Up Display
Available
No
Hill Start Assist
Available
Yes
Impact Sensing Door Unlock
Available
Yes
Intercooler
Available
No
Launch Control
Available
No
Multi Function Steering
Available
Yes
Panoramic Roof
Available
No
Payload Capacity
Available
N/A
Performance Data Logger
Available
No
Power Mirrors
150
Yes
Push Button Start
Available
Yes
Rear Defogger
Available
Yes
Rear Reading Lamps
Available
Yes
Rear Seat Split
Available
Yes
Rear Wing
Available
Yes
Remote Engine Start
Available
No
Rev Matching
Available
No
Ride Mode Selection
Available
Yes
Roof Antenna
Available
Yes
Seat Type
Available
Leather Seats
Seatbelt Pre Tensioner
Available
Yes
Seatbelt Reminder
Available
Yes
Service Plan
Available
3 Years / 45,000 km
Service Reminder
Available
Yes
Side Steps
Available
No
Skid Plates
Available
No
Spare Wheel
Available
Temporary Spare
Speed Alert System
Available
Yes
Stability Control
Available
Yes
Stabilizer Bar
Available
Yes
Steering Mounted Controls
Available
Yes
Steering Response
Available
Normal
Tachometer
Available
Yes
Tail Lamps
Available
LED
Telescopic Steering
Available
-
Tilt Steering
Available
-
Trip Computer
Available
Yes
Tyre Repair Kit
Available
No
Valves Per Cylinder
Available
4
Vanity Mirror
Available
Yes
Voice Command
Available
Yes
Voice Command Support
Available
Yes
Spec
Fronx
Sonet
Infotainment Screen
9-inch Touchscreen
10.25-inch Touchscreen
Infotainment Screen Size
9
10.25
Apple CarPlay
Wired Apple CarPlay
Yes
Android Auto
Wired Android Auto
Yes
Bluetooth Connectivity
Standard
Yes
Number of Speakers
6
8
Navigation System
Via Smartphone Mirroring
Yes
Digital Instrument Cluster
9-inch Digital Cluster
Yes
USB Ports
2
4
Wireless Apple CarPlay
Wireless Apple CarPlay
Yes
FM Radio
Standard
Yes
Steering Wheel Audio Controls
Standard
Yes
Voice Recognition
Via Smartphone
Yes
AUX Input
Not Available
No
Wi-Fi Hotspot
Not Available
No
Audio Controls On Steering
Available
Yes
Infotainment Display
Available
10.25
Rear Usb
Available
Yes
Premium Audio
Available
Yes
Spec
Fronx
Sonet
LED Headlamps
LED Multi-Reflector Headlamps
Yes
Daytime Running Lamps
LED DRLs
Yes
Fog Lamps
Front Fog Lamps
Yes
Roof Rails
Not Available
Yes
Alloy Wheel Design
16-inch Polished Two-Tone Alloy Wheels
Alloy Alloy
Chrome Exterior Finish
Not Available
No
Body Cladding
Plastic Side Body Cladding
No
Rear Spoiler
Not Available
Yes
Exterior Colour Options
6
Multiple
Roof Type
Standard Fixed Roof
Standard
Wing Mirror Type
Electrically Adjustable Body-Coloured Mirrors
Electric
Rear Wiper
Standard
Yes
Door Handle Finish
Body-Coloured Door Handles
Body Colour
Body Type
Available
Sub-Compact SUV
DRL
Available
Yes
Fog Lights
Available
Yes
Front Fog Lights
Available
Yes
Led Headlights
Available
Yes
Led Taillights
Available
Yes
Rear Fog Lights
Available
Yes
Spec
Fronx
Sonet
Approach Angle
19
21
Departure Angle
23
35
Wading Depth
0
N/A
Terrain Modes
Not Applicable
No
Locking Differential
Not Available
No
Underbody Protection
Not Available
No
Ramp Breakover Angle
0
16
Recovery Hooks
1 Rear Tow Hook
No
4WD System Type
Not Applicable — FWD Only
N/A
Hill Descent Control
Available
No
Ramp-over Angle
Available
18
Spec
Fronx
Sonet
Tyre Size
195/60 R16
215/55 R17
Wheel Type
16-inch Polished Alloy
Alloy
Wheel Rim Size
16 Inches
215/55 R17
Front Brake Type
Ventilated Disc
Ventilated Disc
Rear Brake Type
Drum
Drum
Front Brake Disc Diameter
262
280
Rear Brake Drum Diameter
210
236
Parking Brake Type
Conventional Handbrake
Electronic
Tyre Load Index
89
102
Tyre Speed Rating
H
H
Spare Wheel Type
Full Size Spare
Temporary Spare
Brake Type Front
Available
Ventilated Disc
Brake Type Rear
Available
Drum
Spare Tyre
Available
Temporary Spare
Tyre Type
Available
Radial
Front Tyre Width
Available
215
Rear Tyre Width
Available
215
Wheel Diameter
Available
17
Spec
Fronx
Sonet
Front Suspension
MacPherson Strut with Coil Spring
MacPherson Strut
Rear Suspension
Torsion Beam with Coil Spring
Coupled Torsion Beam
Chassis Type
Monocoque
Unibody
Power Steering
Electric Power Assisted (EPAS)
Yes
Steering Column
Tilt and Telescopic Adjustable
Adjustable
Front Spring Type
Coil Spring
Coil Spring
Rear Spring Type
Coil Spring
Coil Spring
Front Anti-Roll Bar
Standard
Yes
Rear Anti-Roll Bar
Standard
Yes
Shock Absorber Type
Telescopic Gas Dampers
Telescopic
Spec
Fronx
Sonet
Service Interval
15,000 km or 12 Months
15000
Approx Service Cost
Approx R2,000–R2,500 per Service
R3,000 per service
Battery Warranty
12 Months
N/A
Maintenance Plan
Not Included
3 Years / 45,000 km
Engine Oil Change Interval
10,000 km or 6 Months
15000
First Service At
1,000 km Inspection
15000
Service Plan Duration
4 Years
3
Service Plan Distance
60000
45000
Anti-Rust Treatment
Underbody Rust Protection
Yes
Alternator
Available
Yes
Battery Type
Available
N/A
Gear Shift Indicator
Available
No
Spec
Fronx
Sonet
Warranty Years
5
7
Warranty Kilometers
200000
150000
Roadside Assistance
5 Years Roadside Assistance
5 Years
Anti-Corrosion Warranty
3 Years Anti-Corrosion
5 Years
Basic Warranty
Available
7 Years / 150,000 km
Spec
Fronx
Sonet
CO2 Emissions
133
138
Start Stop System
Not Available
Yes
Hybrid System Type
Not Applicable
None
Noise Level
68
67
Fuel Octane Requirement
93 RON Unleaded
93 Octane
Particulate Filter
Gasoline Particulate Filter (GPF)
No
Euro Emission Standard
Euro 5
Euro 6
Green NCAP Rating
Not Independently Rated
4
Idle CO2 Output
Within Euro 5 Limits
145
Fuel Evaporation Control
Evaporative Emission Control (EVAP)
Yes
Spec
Fronx
Sonet
Real-world City Mileage Min
6.0
11.6
Real-world City Mileage Max
8.0
15.1
Real-world Highway Mileage Min
4.5
18.0
Real-world Highway Mileage Max
6.0
21.0
Owner Review Count
0
-
So, Which One Should You Buy?
🏆KIA Sonet
wins with 58 pts
vs 54 pts for Fronx
In structured scoring, Sonet emerges as the stronger overall package. However, Fronx may appeal to buyers prioritising different factors. Ultimately, the right choice depends on your driving priorities in South Africa.
Other Comparisons Worth Checking
See how similar cars go head-to-head — you might find a better fit than you expected.
On our scoring the Sonet edges ahead overall. That said, the right choice depends on what you actually use the car for — the breakdown above shows exactly where each one wins and loses.
Efficiency scores: Fronx 0 vs Sonet 0. In the real world, diesel variants of either car will beat the claimed figure on long highways and fall short in Joburg traffic.
Safety scores: Fronx 18, Sonet 18. Check each model page for NCAP ratings and which trim levels include AEB and blind-spot monitoring — those features aren't always standard.
Long-term ownership scores: Fronx 20, Sonet 20. Service intervals, parts availability in SA, and whether a service plan is bundled all factor in — check the individual variant specs for that detail.
Practicality scores: Fronx 10, Sonet 13. This covers boot space, seat flexibility, and day-to-day usability — not just interior dimensions on paper.
Performance scores: Fronx 6, Sonet 7. This looks at real-world pace — 0–100 kph, highway flexibility, and how either car feels when you actually need to overtake on an N-road.
Resale varies with colour, spec, and market timing, but Japanese brands — and Toyota specifically — have a strong track record in SA. Check current used prices for both on AutoTrader to see the real gap right now.
Ground clearance and 4WD availability are what matter most here. Scroll to the spec table above to compare both side by side — if either model offers a 4WD variant, that's the version worth comparing.
Fuel, insurance, and service costs are the big three. Diesel variants of both models typically save R800–R1,500/month in fuel at current SA pump prices. The Sonet edges the overall ownership score, but check whether either variant includes a service plan — that changes the monthly maths significantly.
The Sonet scores better overall, but neither car is a bad buy here. It comes down to what features matter to you — check the full spec table above to see exactly what you gain and lose at each price point.
In Depth — Breaking It All Down
The comparison between Fronx and Sonet in South Africa
evaluates performance, efficiency, safety, practicality and long-term ownership value.
Performance: Fronx scores 6 vs 7.
Efficiency: Fronx scores 0 vs 0.
Safety: Fronx scores 18 vs 18.
Practicality: Fronx scores 10 vs 13.
Ownership: Fronx scores 20 vs 20.
Final structured scoring gives Sonet
the advantage in this comparison.
Compare
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