Kia Stonic vs Mazda CX-3
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.
Kia Stonic
From $26,990
SUV
Petrol
Petrol
88kW
5 L/100km
ANCAP: no data
352L
Mazda CX-3
From $27,800
SUV
Petrol
Petrol
110kW
6.3 L/100km
ANCAP: no data
264L
Track the Kia Stonic & Mazda CX-3
Get price-drop alerts on these models plus our free weekly new-car rundown. Unsubscribe anytime.
Price Breakdown
The Kia Stonic starts from $26,990 before on-road costs, while the Mazda CX-3 opens at $27,800. That makes the Kia Stonic the more affordable entry point by $810.
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 $29,689 and $30,580 respectively.
Over 5 years, the running costs favour the Kia Stonic by roughly $1,855 in fuel alone.
Safety Rundown
ANCAP safety ratings have not been published for both models yet. We will update this section when crash test results are available.
Feature Showdown
The Kia Stonic features a 8-inch touchscreen paired with a 4.2-inch digital dash, while the Mazda CX-3 gets a 8-inch display. Apple CarPlay and Android Auto are standard across both.
Drivetrain
The Kia Stonic uses a Petrol producing 88kW and 172Nm of torque, sent through a 7-speed dct to a FWD layout. It covers the 0-100km/h sprint in 11.2 seconds.
The Mazda CX-3 responds with a Petrol making 110kW and 195Nm, paired to a automatic driving the front wheels. It gets to 100km/h in 10.9 seconds.
The Mazda CX-3 has the clear power advantage at 110kW vs 88kW. In the real-world sprint, the Mazda CX-3 is 0.3s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Kia Stonic measures 4,165mm long on a 2,580mm wheelbase, 110mm shorter than the Mazda CX-3 at 4,275mm (2,570mm wheelbase). The longer wheelbase on the Kia Stonic generally means more rear legroom.
Boot space is 352L in the Kia Stonic and 264L in the Mazda CX-3, giving the Kia Stonic a 88L advantage.
For towing, the Mazda CX-3 leads with a 1,535kg braked capacity vs 900kg. That 635kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.4m to 10.6m
Based on 10.4m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 10.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
Compare U-turns side by side
Turning Circle · U-turn compare
kerb-to-kerb, 2 cars0 of 2 clear a 7.0 m street in one sweep
Green cars complete the U-turn; amber need a 3-point turn. Drag the slider to test tighter streets.
Standard widths: AU local streets ~5.5–7 m; main roads ~9–12 m.
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $1,425/year for the Kia Stonic and $1,796/year for the Mazda CX-3. That is a $371 annual difference in favour of the Kia Stonic.
Estimated annual total: $1,425 (Kia Stonic) vs $1,796 (Mazda CX-3). The Kia Stonic saves you roughly $371 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 7 years / 999,999km (Kia Stonic) vs 5 years / 999,999km (Mazda CX-3). The Kia Stonic has longer coverage.
Who Should Buy Which?
Buy the Kia Stonic if: You want the lower entry price, need more boot space, want lower running costs, value a longer warranty, or prefer Kia's approach to design and ownership experience.
Buy the Mazda CX-3 if: You prioritise performance, need stronger towing, or prefer Mazda's approach to design and ownership experience.
The Verdict
The Kia Stonic takes 4 of 7 key spec categories and comes in at a lower price. The Kia Stonic will save you roughly $371 a year in fuel. If boot space matters, the Kia Stonic has a clear edge. The Kia Stonic 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 Stonic and Mazda CX-3?
The Kia Stonic is the cheapest at $26,990 before on-road costs. That undercuts the Mazda CX-3 by $810.
Which is the most fuel-efficient?
The Kia Stonic uses the least fuel at 5L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of Kia Stonic and Mazda CX-3 carry a published ANCAP rating yet — check back as they are tested.
Which has the most boot space?
The Kia Stonic has the largest boot at 352L.
Which can tow the most?
The Mazda CX-3 has the highest braked towing capacity at 1,535kg.
Which has the best warranty?
The Kia Stonic has the longest warranty at 7 years / Unlimited.
Which is the most powerful?
The Mazda CX-3 makes the most power at 110kW. The Mazda CX-3 is quickest to 100km/h in 10.9s.
Track the cars you're comparing
Get price-drop and spec-change alerts on the models in this comparison, plus our weekly new-car rundown of launches, deals and reviews.
- Price-drop alerts on these models
- Spec-change alerts
- Weekly new-car rundown
No spam, unsubscribe anytime. By subscribing you agree to receive marketing emails.
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
Comments (0)
Sign in to join the conversation
No comments yet. Be the first!
