Kia K4 vs Hyundai i30 Sedan
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.
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Price Breakdown
The Kia K4 starts from $32,090 before on-road costs, while the Hyundai i30 Sedan opens at $29,250. That makes the Hyundai i30 Sedan the more affordable entry point by $2,840.
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 $32,175 respectively.
Over 5 years, the running costs are nearly identical since both have similar efficiency.
Safety Rundown
The Kia K4 holds a 5-star ANCAP rating vs 3 stars for the Hyundai i30 Sedan. Adult occupant protection scored 85% for the Kia K4 and 71% for the Hyundai i30 Sedan.
Where the two diverge is in active safety technology. The Kia K4 packs more ADAS features with 5 out of 10 key systems fitted, compared to 4 in the Hyundai i30 Sedan.
Both include the essentials: autonomous emergency braking, lane keep assist, adaptive cruise control, a reversing camera. Airbag count is 6 in the Kia K4 and 6 in the Hyundai i30 Sedan.
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 that you will not find on the Hyundai i30 Sedan. The Hyundai i30 Sedan 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 Hyundai i30 Sedan offers leather.
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 Hyundai i30 Sedan responds with a Petrol making 110kW and 180Nm, paired to a cvt driving the front wheels.
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 Kia K4 measures 4,710mm long on a 2,720mm wheelbase, matching the Hyundai i30 Sedan at 4,710mm (2,720mm wheelbase).
Boot space is 508L in the Kia K4 and 474L in the Hyundai i30 Sedan, giving the Kia K4 a 34L advantage.
For towing, the Hyundai i30 Sedan 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 10.7m 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
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 $1,739/year for the Hyundai i30 Sedan. That is a $29 annual difference in favour of the Kia K4.
Estimated annual total: $1,710 (Kia K4) vs $1,739 (Hyundai i30 Sedan). The Kia K4 saves you roughly $29 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 7 years / 999,999km (Kia K4) vs 5 years / 999,999km (Hyundai i30 Sedan). The Kia K4 has longer coverage.
Who Should Buy Which?
Buy the Kia K4 if: You need more boot space, want lower running costs, value a longer warranty, or prefer Kia's approach to design and ownership experience.
Buy the Hyundai i30 Sedan if: You want the lower entry price, or prefer Hyundai's approach to design and ownership experience.
The Verdict
The Kia K4 takes 4 of 5 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 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.
Common questions
Which is cheapest, Kia K4 and Hyundai i30 Sedan?
The Hyundai i30 Sedan is the cheapest at $29,250 before on-road costs. That undercuts the Kia K4 by $2,840.
Which is the most fuel-efficient?
The Kia K4 uses the least fuel at 6L/100km on the combined cycle.
Which is safest?
The Kia K4 has the highest ANCAP rating at 5 stars.
Which has the most boot space?
The Kia K4 has the largest boot at 508L.
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.
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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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