Kia K4 vs Fiat 500
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.
Data checked: specs 7 Sep 2026, price 4 Oct 2026
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Price Breakdown
The Kia K4 starts from $32,090 before on-road costs, while the Fiat 500 opens at $28,900. That makes the Fiat 500 the more affordable entry point by $3,190.
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 $35,299 and $31,790 respectively.
Over 5 years, the running costs favour the Fiat 500 by roughly $1,710 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.
Recalls on our record
Kia K4
- REC-006571 · published 20 Mar 2026K4 Hatch: rear centre seat belt may not latch properlyYear range on the notice: 2025 - 2026
- REC-006557 · published 6 Mar 2026Due to a software error, the Instrument Cluster may display a blank screen or may not operate as intended.Year range on the notice: 2025
Fiat 500
- REC-003875 · published 30 May 2019On affected vehicles the drive axle may break due to a nonconformity in the production process.Year range on the notice: the notice prints no build range
- REC-003732 · published 26 Jul 2016Possible non-conformity of the right front seat guide tracks.Year range on the notice: the notice prints no build range
- REC-003693 · published 18 Apr 2016There is a potential deviation in the buckle heat treatment process.Year range on the notice: the notice prints no build range
A recall covers the builds its notice lists, not every car of a model. Check your VIN at vehiclerecalls.gov.au.
Feature Showdown
Both come with modern infotainment systems. Apple CarPlay and Android Auto are standard across both.
The Kia K4 stands out with wireless Apple CarPlay/Android Auto — features our data doesn't list for the Fiat 500. The Fiat 500 counters with Apple CarPlay. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the Kia K4 gets cloth upholstery while the Fiat 500 offers fabric.
Drivetrain
The Kia K4 uses a Petrol producing 110kW and 180Nm of torque, sent through a automatic to a FWD layout. It covers the 0-100km/h sprint in 9.8 seconds.
The Fiat 500 responds with a MultiAir Petrol making 51kW and 102Nm, paired to a 5-speed dualogic automatic driving the front wheels. It gets to 100km/h in 12.9 seconds.
The Kia K4 has the clear power advantage at 110kW vs 51kW. In the 0-100 sprint (manufacturer-claimed), the Kia K4 is 3.1s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Kia K4 measures 4,710mm long on a 2,720mm wheelbase, 1139mm longer than the Fiat 500 at 3,571mm (2,300mm wheelbase). The longer wheelbase on the Kia K4 generally means more rear legroom.
Boot space is 508L in the Kia K4 and 185L in the Fiat 500, giving the Kia K4 a 323L advantage. The Kia K4 seats 5 vs 4.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
9.3m to 10.7m
Based on 10.7m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 9.3m 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 $1,710/year for the Kia K4 and $1,368/year for the Fiat 500. That is a $342 annual difference in favour of the Fiat 500.
Warranty: 7 years / 999,999km (Kia K4) vs 3 years / 150,000km (Fiat 500). The Kia K4 has longer coverage.
Who Should Buy Which?
Buy the Kia K4 if: You prioritise performance, need more boot space, value a longer warranty, or prefer Kia's approach to design and ownership experience.
Buy the Fiat 500 if: You want the lower entry price, want lower running costs, or prefer Fiat's approach to design and ownership experience.
The Verdict
Kia K4: Top CarSorted Score, 66 vs 51, but the Fiat 500 is $3,190 cheaper
The Kia K4 comes out ahead on the CarSorted Score (66 vs 51), taking 4 of 6 key spec rows below. The deciding gaps: safety (Kia K4 ahead by 29), reliability (Kia K4 ahead by 28), performance (Kia K4 ahead by 18). The Fiat 500 will save you roughly $342 a year in fuel. If boot space matters, the Kia K4 has a clear edge. The Kia K4 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.
One enquiry, local dealers' best price on each. Free for you to use. If you buy, the dealer may pay us a commission.
Common questions
Which is cheapest, Kia K4 and Fiat 500?
The Fiat 500 is the cheapest at $28,900 before on-road costs. That undercuts the Kia K4 by $3,190.
Which is the most fuel-efficient?
The Fiat 500 uses the least fuel at 4.8L/100km on the combined cycle.
What are the ANCAP safety ratings?
None of Kia K4 and Fiat 500 carry a published ANCAP rating yet, so there is no crash result to compare. Check back as they are tested.
Which has the most boot space?
The Kia K4 has the largest boot at 508L with the seats up.
Which can tow the most?
The Kia K4 has the highest braked towing capacity at 1,100kg.
Which has the best warranty?
The Kia K4 has the longest warranty at 7 years / Unlimited.
Which is the most powerful?
The Kia K4 makes the most power at 110kW. The Kia K4 is quickest to 100km/h in 9.8s.
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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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