Mazda BT-50 vs Isuzu MU-X
A detailed look at how two of Australia's most popular cars 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 BT-50 starts from $36,400 before on-road costs, while the Isuzu MU-X opens at $43,900. That makes the Mazda BT-50 the more affordable entry point by $7,500.
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 $40,040 and $48,290 respectively.
Over 5 years, the running costs favour the Isuzu MU-X by roughly $1,000 in fuel alone.
Safety Rundown
Both the Mazda BT-50 and Isuzu MU-X hold a 5-star ANCAP safety rating. Adult occupant protection scored 86% for the Mazda BT-50 and 86% for the Isuzu MU-X.
Where the two diverge is in active safety technology. The Isuzu MU-X packs more ADAS features with 6 out of 10 key systems fitted, compared to 1 in the Mazda BT-50.
Both include the essentials: autonomous emergency braking, a reversing camera. Airbag count is 6 in the Mazda BT-50 and 8 in the Isuzu MU-X.
Feature Showdown
The Mazda BT-50 features a 7-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 BT-50 stands out with Apple CarPlay that you will not find on the Isuzu MU-X. The Isuzu MU-X counters with wireless Apple CarPlay/Android Auto. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Mazda BT-50 uses a Diesel producing 120kW and 400Nm of torque, sent through a automatic to a RWD layout. It covers the 0-100km/h sprint in 10.9 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.
Power output is identical on paper, so the difference comes down to tuning, weight distribution, and suspension. In the real-world sprint, the Mazda BT-50 is 0.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Mazda BT-50 measures 5,320mm long on a 3,125mm wheelbase, 460mm longer than the Isuzu MU-X at 4,860mm (2,855mm wheelbase). The longer wheelbase on the Mazda BT-50 generally means more rear legroom.
For towing, the Isuzu MU-X leads with a 3,500kg braked capacity vs 3,500kg. That 0kg 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 12.5m
Based on 12.5m 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 $2,024/year for the Mazda BT-50 and $1,824/year for the Isuzu MU-X. That is a $200 annual difference in favour of the Isuzu MU-X.
Estimated annual total: $2,024 (Mazda BT-50) vs $1,824 (Isuzu MU-X). The Isuzu MU-X saves you roughly $200 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 999,999km (Mazda BT-50) vs 6 years / 150,000km (Isuzu MU-X). The Isuzu MU-X has longer coverage.
Who Should Buy Which?
Buy the Mazda BT-50 if: You want the lower entry price, or prefer Mazda's approach to design and ownership experience.
Buy the Isuzu MU-X if: You want lower running costs, value a longer warranty, or prefer Isuzu's approach to design and ownership experience.
The Verdict
This is genuinely close. The Mazda BT-50 and Isuzu MU-X trade blows across the spec sheet, and neither runs away with an outright win. The Isuzu MU-X will save you roughly $200 a year in fuel. 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 BT-50 and Isuzu MU-X?
The Mazda BT-50 is the cheapest at $36,400 before on-road costs. That undercuts the Isuzu MU-X by $7,500.
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 BT-50 and Isuzu MU-X all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which can tow the most?
The Mazda BT-50 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.
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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