Mazda CX-90 vs Isuzu MU-X
A detailed look at how two of Australia's most popular SUVs compare on price, running costs, safety, and everyday livability.
Specifications and pricing correct at time of publishing. Prices are RRP before on-road costs unless stated otherwise. Always confirm with the manufacturer or dealer before purchasing.
Price Breakdown
The Mazda CX-90 starts from $74,385 before on-road costs, while the Isuzu MU-X opens at $43,900. That makes the Isuzu MU-X the more affordable entry point by $30,485.
Once you factor in stamp duty, registration, CTP insurance, and dealer delivery, expect to add roughly 8-12% on top of the RRP depending on your state. That puts estimated driveaway prices in the ballpark of $81,824 and $48,290 respectively.
Over 5 years, the running costs favour the Isuzu MU-X by roughly $2,565 in fuel alone.
Safety Rundown
Both the Mazda CX-90 and Isuzu MU-X hold a 5-star ANCAP safety rating. Adult occupant protection scored 91% for the Mazda CX-90 and 86% for the Isuzu MU-X.
Where the two diverge is in active safety technology. Both models are evenly matched with 6 out of 10 key ADAS systems.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 6 in the Mazda CX-90 and 8 in the Isuzu MU-X.
Feature Showdown
The Mazda CX-90 features a 10.3-inch touchscreen, while the Isuzu MU-X gets a 8-inch display and 4.2-inch instruments. Apple CarPlay and Android Auto are standard across both.
The Mazda CX-90 stands out with wireless charging and power tailgate that you will not find on the Isuzu MU-X. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Mazda CX-90 uses a Petrol producing 254kW and 500Nm of torque, sent through a automatic to a AWD layout. It covers the 0-100km/h sprint in 7.8 seconds.
The Isuzu MU-X responds with a Diesel making 120kW and 400Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 11 seconds.
The Mazda CX-90 has the clear power advantage at 254kW vs 120kW. In the real-world sprint, the Mazda CX-90 is 3.2s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Mazda CX-90 measures 5,100mm long on a 3,120mm wheelbase, 240mm longer than the Isuzu MU-X at 4,860mm (2,855mm wheelbase). The longer wheelbase on the Mazda CX-90 generally means more rear legroom.
Boot space is 257L in the Mazda CX-90 and 311L in the Isuzu MU-X, giving the Isuzu MU-X a 54L advantage. Fold the rears and you get 2025L vs 2138L.
For towing, the Isuzu MU-X leads with a 3,500kg braked capacity vs 2,000kg. That 1,500kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.6m to 12.0m
Based on 12.0m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $2,337/year for the Mazda CX-90 and $1,824/year for the Isuzu MU-X. That is a $513 annual difference in favour of the Isuzu MU-X.
Estimated annual total: $2,337 (Mazda CX-90) vs $1,824 (Isuzu MU-X). The Isuzu MU-X saves you roughly $513 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (Mazda CX-90) vs 6 years / 150,000km (Isuzu MU-X). The Isuzu MU-X has longer coverage.
Who Should Buy Which?
Buy the Mazda CX-90 if: You prioritise performance, or prefer Mazda's approach to design and ownership experience.
Buy the Isuzu MU-X if: You want the lower entry price, need more boot space, want lower running costs, value a longer warranty, need stronger towing, or prefer Isuzu's approach to design and ownership experience.
The Verdict
The Isuzu MU-X takes 5 of 7 key spec categories and comes in at a lower price. The Isuzu MU-X will save you roughly $513 a year in fuel. If boot space matters, the Isuzu MU-X has a clear edge. The Isuzu MU-X adds peace of mind with a longer 6-year warranty. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Mazda CX-90 and Isuzu MU-X?
The Isuzu MU-X is the cheapest at $43,900 before on-road costs. That undercuts the Mazda CX-90 by $30,485.
Which is the most fuel-efficient?
The Isuzu MU-X uses the least fuel at 6.4L/100km on the combined cycle.
Which is safest?
They are evenly matched — Mazda CX-90 and Isuzu MU-X all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Isuzu MU-X has the largest boot at 311L.
Which can tow the most?
The Isuzu MU-X has the highest braked towing capacity at 3,500kg.
Which has the best warranty?
The Isuzu MU-X has the longest warranty at 6 years / 150k km.
Which is the most powerful?
The Mazda CX-90 makes the most power at 254kW. The Mazda CX-90 is quickest to 100km/h in 7.8s.
Disclaimer: All information in this comparison was believed to be correct at the time of publishing (20 April 2026). Prices are manufacturer recommended retail prices (RRP) and may vary by state, dealer, and options. Driveaway costs include estimated on-road costs for Victoria. Fuel economy figures are WLTP/ADR combined cycle. Specifications can change without notice. Always verify with the manufacturer before making a purchase decision. CarSorted does not accept payment for recommendations.
Auto-generated from CarSorted's specification data · 20 April 2026
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