Kia Carnival vs Mazda CX-90
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 Kia Carnival starts from $55,490 before on-road costs, while the Mazda CX-90 opens at $74,385. That makes the Kia Carnival the more affordable entry point by $18,895.
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 $61,039 and $81,824 respectively.
Over 5 years, the running costs favour the Mazda CX-90 by roughly $1,995 in fuel alone.
Safety Rundown
Both the Kia Carnival and Mazda CX-90 hold a 5-star ANCAP safety rating. Adult occupant protection scored 90% for the Kia Carnival and 91% for the Mazda CX-90.
Where the two diverge is in active safety technology. The Mazda CX-90 packs more ADAS features with 6 out of 10 key systems fitted, compared to 5 in the Kia Carnival.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 7 in the Kia Carnival and 6 in the Mazda CX-90.
Feature Showdown
The Kia Carnival features a 8-inch touchscreen, while the Mazda CX-90 gets a 10.3-inch display. Apple CarPlay and Android Auto are standard across both.
Drivetrain
The Kia Carnival uses a Petrol producing 216kW and 355Nm of torque, sent through a automatic to a FWD layout. It covers the 0-100km/h sprint in 9.1 seconds.
The Mazda CX-90 responds with a Petrol making 254kW and 500Nm, paired to a automatic driving all four wheels. It gets to 100km/h in 7.8 seconds.
The Mazda CX-90 has the clear power advantage at 254kW vs 216kW. In the real-world sprint, the Mazda CX-90 is 1.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Kia Carnival measures 5,155mm long on a 3,090mm wheelbase, 35mm longer than the Mazda CX-90 at 5,120mm (3,120mm wheelbase). The longer wheelbase on the Mazda CX-90 generally means more rear legroom.
Boot space is 587L in the Kia Carnival and 257L in the Mazda CX-90, giving the Kia Carnival a 330L advantage. The Kia Carnival seats 8 vs 7.
For towing, the Mazda CX-90 leads with a 2,500kg braked capacity vs 2,000kg. That 500kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.8m 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 10.8m 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 $2,736/year for the Kia Carnival and $2,337/year for the Mazda CX-90. That is a $399 annual difference in favour of the Mazda CX-90.
Estimated annual total: $2,736 (Kia Carnival) vs $2,337 (Mazda CX-90). The Mazda CX-90 saves you roughly $399 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 7 years / 999,999km (Kia Carnival) vs 5 years / 999,999km (Mazda CX-90). The Kia Carnival has longer coverage.
Who Should Buy Which?
Buy the Kia Carnival if: You want the lower entry price, need more boot space, value a longer warranty, or prefer Kia's approach to design and ownership experience.
Buy the Mazda CX-90 if: You prioritise performance, want lower running costs, need stronger towing, or prefer Mazda's approach to design and ownership experience.
The Verdict
The Mazda CX-90 takes 4 of 7 key spec categories. The Mazda CX-90 will save you roughly $399 a year in fuel. If boot space matters, the Kia Carnival has a clear edge. The Kia Carnival adds peace of mind with a longer 7-year warranty. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Kia Carnival and Mazda CX-90?
The Kia Carnival is the cheapest at $55,490 before on-road costs. That undercuts the Mazda CX-90 by $18,895.
Which is the most fuel-efficient?
The Mazda CX-90 uses the least fuel at 8.2L/100km on the combined cycle.
Which is safest?
They are evenly matched — Kia Carnival and Mazda CX-90 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Kia Carnival has the largest boot at 587L.
Which can tow the most?
The Mazda CX-90 has the highest braked towing capacity at 2,500kg.
Which has the best warranty?
The Kia Carnival has the longest warranty at 7 years / 1000k 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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