Hyundai i45 vs Mercedes-Benz C-Class
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 i45
Price TBC
Sedan
Petrol
—
148kW
7.9 L/100km
5★ ANCAP
—
Mercedes-Benz C-Class
From $76,900
Sedan
Petrol
Petrol
150kW
6.9 L/100km
5★ ANCAP
455L
Hyundai i45: we're still completing price, 0-100km/h and transmission.
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
Pricing for one or both models is yet to be confirmed for the Australian market. We will update this comparison when official RRPs are announced.
Safety Rundown
Both the Hyundai i45 and Mercedes-Benz C-Class hold a 5-star ANCAP safety rating.
Where the two diverge is in active safety technology. We can confirm 6 of 10 key ADAS systems on the Mercedes-Benz C-Class, against 0 on the Hyundai i45.
Both include the essentials: core safety systems. Airbag count is 6 in the Hyundai i45 and 9 in the Mercedes-Benz C-Class.
Feature Showdown
Both come with modern infotainment systems.
The Hyundai i45 stands out with heated front seats — features our data doesn't list for the Mercedes-Benz C-Class. The Mercedes-Benz C-Class counters with wireless Apple CarPlay/Android Auto, head-up display, wireless charging and ambient lighting. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Hyundai i45 lines up producing 148kW and 250Nm of torque, sent through its transmission to a FWD layout.
The Mercedes-Benz C-Class responds with a Petrol making 150kW and 300Nm, paired to a automatic driving the rear wheels. It gets to 100km/h in 7.3 seconds.
The Mercedes-Benz C-Class has the clear power advantage at 150kW vs 148kW. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Hyundai i45 measures 4,820mm long on a 2,795mm wheelbase, 69mm longer than the Mercedes-Benz C-Class at 4,751mm (2,865mm wheelbase). The longer wheelbase on the Mercedes-Benz C-Class generally means more rear legroom.
For towing, the Mercedes-Benz C-Class leads with a 1,800kg braked capacity vs 800kg. That 1,000kg difference matters if you regularly hitch up.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
10.9m to 11.1m
Based on 10.9m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Based on 11.1m 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 $2,252/year for the Hyundai i45 and $1,967/year for the Mercedes-Benz C-Class. That is a $285 annual difference in favour of the Mercedes-Benz C-Class.
Warranty: 5 years (Hyundai i45) vs 5 years / 999,999km (Mercedes-Benz C-Class). Both match on warranty length.
Who Should Buy Which?
Buy the Hyundai i45 if: You or prefer Hyundai's approach to design and ownership experience.
Buy the Mercedes-Benz C-Class if: You prioritise performance, want lower running costs, need stronger towing, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The Mercedes-Benz C-Class takes 3 of 3 key spec categories. The Mercedes-Benz C-Class will save you roughly $285 a year in fuel. The best pick depends on what you value most. Explore the full specs for each model below.
Common questions
Which is cheapest, Hyundai i45 and Mercedes-Benz C-Class?
The Mercedes-Benz C-Class is the cheapest at $76,900 before on-road costs.
Which is the most fuel-efficient?
The Mercedes-Benz C-Class uses the least fuel at 6.9L/100km on the combined cycle.
Which is safest?
They are evenly matched on crash rating: Hyundai i45 and Mercedes-Benz C-Class all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which can tow the most?
The Mercedes-Benz C-Class has the highest braked towing capacity at 1,800kg.
Which is the most powerful?
The Mercedes-Benz C-Class makes the most power at 150kW.
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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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