Hyundai i30 Sedan vs Kia K4
A detailed look at how two of Australia's most popular Sedans 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.
Hyundai i30 Sedan
From $29,000
Sedan
Petrol
SmartStream G2.0 MPi
110kW
6.1 L/100km
ANCAP: no data
474L
Kia K4
From $32,090
Sedan
Petrol
Petrol
110kW
6 L/100km
5★ ANCAP
508L
Hyundai i30 Sedan: we're still completing kerb weight, seat count, 0-100km/h and warranty.
A blank cell below means we don't have that figure, not that the car scores badly on it. We leave them empty rather than estimate, so any row where one car is blank isn't a like-for-like comparison yet.
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Price Breakdown
The Hyundai i30 Sedan starts from $29,000 before on-road costs, while the Kia K4 opens at $32,090. That makes the Hyundai i30 Sedan the more affordable entry point by $3,090.
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 $31,900 and $35,299 respectively.
Over 5 years, the running costs are nearly identical since both have similar efficiency.
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
Both come with modern infotainment systems. Apple CarPlay and Android Auto are standard across both.
The Hyundai i30 Sedan stands out with Apple CarPlay and wireless charging that you will not find on the Kia K4. The Kia K4 counters with wireless Apple CarPlay/Android Auto. Which feature set matters more depends on your daily routine and priorities.
Interior trim differs: the Hyundai i30 Sedan gets premium cloth upholstery while the Kia K4 offers cloth.
Drivetrain
The Hyundai i30 Sedan uses a SmartStream G2.0 MPi producing 110kW and 180Nm of torque, sent through a smartstream ivt (intelligent variable transmission) to a FWD layout.
The Kia K4 responds with a Petrol making 110kW and 180Nm, paired to a automatic driving the front wheels. It gets to 100km/h in 9.8 seconds.
Power output is identical on paper, so the difference comes down to tuning, weight distribution, and suspension. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Hyundai i30 Sedan measures 4,710mm long on a 2,720mm wheelbase, matching the Kia K4 at 4,710mm (2,720mm wheelbase).
Boot space is 474L in the Hyundai i30 Sedan and 508L in the Kia K4, giving the Kia K4 a 34L advantage.
For towing, the Kia K4 leads with a 1,100kg braked capacity vs 1,100kg. That 0kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.7m to 10.8m
Based on 10.8m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 10.7m 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 $1,739/year for the Hyundai i30 Sedan and $1,710/year for the Kia K4. That is a $29 annual difference in favour of the Kia K4.
Estimated annual total: $1,739 (Hyundai i30 Sedan) vs $1,710 (Kia K4). The Kia K4 saves you roughly $29 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Who Should Buy Which?
Buy the Hyundai i30 Sedan if: You want the lower entry price, or prefer Hyundai's approach to design and ownership experience.
Buy the Kia K4 if: You need more boot space, want lower running costs, or prefer Kia's approach to design and ownership experience.
The Verdict
The Kia K4 takes 2 of 3 key spec categories. The Kia K4 will save you roughly $29 a year in fuel. If boot space matters, the Kia K4 has a clear edge. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Hyundai i30 Sedan and Kia K4?
The Hyundai i30 Sedan is the cheapest at $29,000 before on-road costs. That undercuts the Kia K4 by $3,090.
Which is the most fuel-efficient?
The Kia K4 uses the least fuel at 6L/100km on the combined cycle.
Which is safest?
They are evenly matched — Kia K4 all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Kia K4 has the largest boot at 508L.
Which can tow the most?
The Hyundai i30 Sedan has the highest braked towing capacity at 1,100kg.
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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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