Isuzu MU-X vs Lexus NX

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.

Isuzu MU-X in South Africa

Isuzu MU-X

3.0 DDi LSE 4x4 AT Diesel Automatic
ZAR 973,800 ex-showroom
⚡ 110 kW 🔧 350 @ 1800-2600 Nm ⛽ 13.2 km/l
VS
Lexus NX in South Africa

Lexus NX

NX 350 F SPORT Petrol Automatic 8-speed
ZAR 1,276,500 ex-showroom
⚡ 205 kW 🔧 430 Nm ⛽ 12.3 km/l
Add a 3rd car

At a Glance — Who Wins What

Performance NX
Fuel Economy MU-X
🛡 Safety Tie
📦 Practicality MU-X
🔑 Ownership NX
MU-X starts ZAR 1074200 cheaper MU-X from ZAR 752,400 · NX from ZAR 1,074,200

Key Specs Side by Side

The specs that matter most — highlighted where one car leads.

Spec MU-X NX
Engine Power 110 @ 3600 kW 205 kW
Torque 350 @ 1800-2600 Nm 430 Nm
Engine Size 3000 cc 2400 cc
Claimed Mileage 13.2 km/l 12.3 km/l
Ground Clearance 235 mm 195 mm
Boot / Load Bay Load bay payload 659 kg 520 l
Airbags Standard Side,Curtain,Driver,Passenger,Driver Knee
Kerb Weight 2080 kg 1760-1860 kg
Seating Capacity 7 5
Warranty 5 years / 120 000 km 7 years / 105,000km

= leads in this spec

The Bottom Line

Both MU-X and NX are extremely closely matched, making the final choice dependent on buyer preference.

Where They Actually Differ

Performance NX +24 pts
Efficiency MU-X +3 pts
Safety Equal
Practicality MU-X +29 pts
Ownership NX +49 pts

What Each Car Gets Right (and Wrong)

MU-X

Strengths
  • Better fuel efficiency
  • More practical for daily use
Weak Spots
  • Less powerful engine setup
  • Shorter warranty coverage
Best suited to: Fuel Efficiency Family Usage
🏆 Overall Winner

NX

Strengths
  • More powerful engine output
  • Better long-term ownership value
Weak Spots
  • Lower fuel efficiency
  • Less practical in daily usage
Best suited to: Highway Driving

Which One's Right for You?

MU-X

  • Buyers looking for better fuel efficiency
  • Large families needing more practicality and usability

NX

  • Drivers who prioritise strong highway performance and overtaking power
  • Long-term owners valuing warranty and ownership peace of mind

Full Specs, Side by Side

Spec MU-X NX
Model Introduced Year 2013 2023
Generation Current generation MU-X built on Isuzu D-Max platform Second-generation Lexus NX mid-size luxury SUV
Facelift History Latest updates improved styling and safety tech Current South African range includes petrol, self-charging hybrid and plug-in-hybrid derivatives
Facelift Launched Since Original current-generation version Current South African range includes petrol, self-charging hybrid and plug-in-hybrid derivatives
Facelift Version Ending Current Current South African specification checked 2026-07-17
Body Style 7-seat SUV SUV
Color Note White, Black, Silver, Grey, Red -
Dealer Stock Note Flagship grade in the South Africa lineup -
Drivetrain Note Drive layout derived from the official derivative naming: 3.0 DDi LSE 4x4 AT -
Model Year MY26 2026
Production Status published published
Segment SUV Luxury SUV
Vehicle Type SUV SUV
Spec MU-X NX
Ground Clearance 235 mm 195 mm
Wheelbase 2855 mm 2690 mm
Length 4850 mm 4660 mm
Width 1870 mm 1865 mm
Height 1825 mm 1670 mm
Kerb Weight 2080 kg 1760-1860 kg
Gross Vehicle Weight 2800 kg 2370 kg
Seating Capacity 7 5
Boot Space Load bay payload 659 kg 520 l
Towing Capacity 3500 kg 1000 kg
Front Track Width - 1605 mm
Rear Track Width - 1625 mm
Turning Radius 11.4 m 5.8 m
Load Bed Length Load bay payload 659 kg 520 l
Load Bed Width - -
Front Legroom - -
Rear Legroom - -
Front Headroom - -
Rear Headroom - -
Front Shoulder Room - -
Rear Shoulder Room - -
Boot Space Seats Folded - -
Number of Doors 5 5
Max Payload 659 kg 510-610 kg
Boot Volume Load bay payload 659 kg 520 l
Doors 5 5
Seats 7 5
Fuel Tank Capacity 80 l 55 l
Front Overhang Mm 895 mm -
Gross Combined Mass Kg 5900 kg -
Gross Vehicle Mass Kg 2800 kg 2370 kg
Ground Clearance Max 235 mm 195 mm
Ground Clearance Min 235 mm 195 mm
Ground Clearance Mm 235 mm 195 mm
Height Mm 1825 mm 1670 mm
Length Mm 4850 mm 4660 mm
Loadbox Length Mm Load bay payload 659 kg 520 l
Loadbox Width Mm - -
Payload Kg 659 kg 510-610 kg
Cargo Volume Load bay payload 659 kg 520 l
Rear Overhang Mm 1100 mm -
Tare Mass Kg 2080 kg 1760-1860 kg
Track Front Rear Mm 1570 / 1570 -
Turning Circle 11.4 m 5.8 m
Turning Circle M 11.4 m 5.8 m
Width Mm 1870 mm 1865 mm

Overall Verdict Score

Decision-grade view of the winner, score gap and category strengths.

Weighted / 100
Verdict readout

NX leads by 7 points

Both MU-X and NX are extremely closely matched, making the final choice dependent on buyer preference.

Winner 78 /100
Lead 7 points
Data 79% confidence
78
#1 Winner

NX

79% data confidence 3 strong categories
Best at Safety 94 Check Efficiency 49
Performance 86
Efficiency 49
Safety 94
Practicality 64
Ownership 93
Leads by 7 points
71
#2

MU-X

84% data confidence 2 strong categories
Best at Safety 94 Check Ownership 44
Performance 62
Efficiency 52
Safety 94
Practicality 93
Ownership 44
Performance 24% Safety 22% Practicality 22% Efficiency 17% Ownership 15%
Category leaders What moves the verdict
Performance NX +24 Efficiency MU-X +3 Safety Level Practicality MU-X +29 Ownership NX +49

Very close match. Final decision depends on buyer preference.

Why this score View full breakdown
Overall Winner

NX

Performance 86/100
Efficiency 49/100
Safety 94/100
Practicality 64/100
Ownership 93/100

MU-X

Performance 62/100
Efficiency 52/100
Safety 94/100
Practicality 93/100
Ownership 44/100

So, Which One Should You Buy?

🏆 Lexus NX wins with 78 pts vs 71 pts for MU-X

In structured scoring, NX emerges as the stronger overall package. However, MU-X may appeal to buyers prioritising different factors. Ultimately, the right choice depends on your driving priorities in South Africa.

Buyers Also Looked At These

Other comparisons that people in the same boat tend to check out.

Questions Buyers Usually Ask

On our scoring the NX 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: MU-X 52 vs NX 49. 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: MU-X 94, NX 94. 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: MU-X 44, NX 93. 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: MU-X 93, NX 64. This covers boot space, seat flexibility, and day-to-day usability — not just interior dimensions on paper.

Performance scores: MU-X 62, NX 86. 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 NX edges the overall ownership score, but check whether either variant includes a service plan — that changes the monthly maths significantly.

The NX 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 MU-X and NX in South Africa evaluates performance, efficiency, safety, practicality and long-term ownership value.

Performance: MU-X scores 62 vs 86.

Efficiency: MU-X scores 52 vs 49.

Safety: MU-X scores 94 vs 94.

Practicality: MU-X scores 93 vs 64.

Ownership: MU-X scores 44 vs 93.

Final structured scoring gives NX the advantage in this comparison.