Alfa Romeo Giulia vs Mercedes-Benz AMG C63 S E Performance
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.
Alfa Romeo Giulia
From $75,900
Sedan
Petrol
206kW
7.4 L/100km
ANCAP: no data
480L
Mercedes-Benz AMG C63 S E Performance
From $189,900
Sedan
Hybrid
500kW
6.9 kWh/100km
5★ ANCAP
359L
Price Breakdown
The Alfa Romeo Giulia starts from $75,900 before on-road costs, while the Mercedes-Benz AMG C63 S E Performance opens at $189,900. That makes the Alfa Romeo Giulia the more affordable entry point by $114,000.
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 $83,490 and $208,890 respectively.
The Mercedes-Benz AMG C63 S E Performance qualifies for FBT exemption as an electric vehicle, which can dramatically reduce the effective cost for novated lease buyers. The Alfa Romeo Giulia, as a petrol model, does not qualify.
Over 5 years, the running costs favour the Mercedes-Benz AMG C63 S E Performance by roughly $8,890 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
Both come with modern infotainment systems. Apple CarPlay and Android Auto are standard across both.
The Alfa Romeo Giulia stands out with Harman Kardon audio and ambient lighting that you will not find on the Mercedes-Benz AMG C63 S E Performance. The Mercedes-Benz AMG C63 S E Performance counters with head-up display, panoramic roof, heated front seats, ventilated seats, power tailgate and Burmester audio. Which feature set matters more depends on your daily routine and priorities.
Drivetrain
The Alfa Romeo Giulia uses a Petrol producing 206kW and 400Nm of torque, sent through a automatic to a RWD layout. It covers the 0-100km/h sprint in 5.2 seconds.
The Mercedes-Benz AMG C63 S E Performance responds with a Hybrid making 500kW and 1020Nm, paired to a 9-speed auto driving all four wheels. It gets to 100km/h in 3.4 seconds.
The Mercedes-Benz AMG C63 S E Performance has the clear power advantage at 500kW vs 206kW. In the real-world sprint, the Mercedes-Benz AMG C63 S E Performance is 1.8s quicker. For most buyers, the way each car feels day-to-day matters more than outright acceleration.
Space & Comfort
The Alfa Romeo Giulia measures 4,643mm long on a 2,820mm wheelbase, 199mm shorter than the Mercedes-Benz AMG C63 S E Performance at 4,842mm (2,865mm wheelbase). The longer wheelbase on the Mercedes-Benz AMG C63 S E Performance generally means more rear legroom.
Boot space is 480L in the Alfa Romeo Giulia and 359L in the Mercedes-Benz AMG C63 S E Performance, giving the Alfa Romeo Giulia a 121L advantage.
Turning Circle
Kerb-to-kerb diameter. Smaller turns easier in tight carparks and U-turns.
11.6m diameter
Average
Based on 11.6m turning circle:
- U-turn on standard street (7m+ wide)
- Standard parking bay
- Tight carparks
- Narrow laneways
Turning circle ratings
True Cost to Own
Based on 15,000km of annual driving, fuel costs roughly $2,109/year for the Alfa Romeo Giulia and $331/year for the Mercedes-Benz AMG C63 S E Performance. That is a $1,778 annual difference in favour of the Mercedes-Benz AMG C63 S E Performance.
Estimated annual total: $2,109 (Alfa Romeo Giulia) vs $331 (Mercedes-Benz AMG C63 S E Performance). The Mercedes-Benz AMG C63 S E Performance saves you roughly $1,778 per year in total ownership costs. Use our Fuel Cost Calculator to estimate based on your driving.
Warranty: 5 years / 150,000km (Alfa Romeo Giulia) vs 5 years / 999,999km (Mercedes-Benz AMG C63 S E Performance). Both match on warranty length.
Who Should Buy Which?
Buy the Alfa Romeo Giulia if: You want the lower entry price, need more boot space, or prefer Alfa Romeo's approach to design and ownership experience.
Buy the Mercedes-Benz AMG C63 S E Performance if: You prioritise performance, want lower running costs, or prefer Mercedes-Benz's approach to design and ownership experience.
The Verdict
The Mercedes-Benz AMG C63 S E Performance takes 3 of 5 key spec categories. The Mercedes-Benz AMG C63 S E Performance will save you roughly $1,778 a year in fuel. If boot space matters, the Alfa Romeo Giulia 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, Alfa Romeo Giulia and Mercedes-Benz AMG C63 S E Performance?
The Alfa Romeo Giulia is the cheapest at $75,900 before on-road costs. That undercuts the Mercedes-Benz AMG C63 S E Performance by $114,000.
Which is the most fuel-efficient?
The Mercedes-Benz AMG C63 S E Performance uses the least fuel at 6.9L/100km on the combined cycle.
Which is safest?
They are evenly matched — Mercedes-Benz AMG C63 S E Performance all hold a 5-star ANCAP rating. Compare the active-safety features above to separate them.
Which has the most boot space?
The Alfa Romeo Giulia has the largest boot at 480L.
Which can tow the most?
The Alfa Romeo Giulia has the highest braked towing capacity at 1,600kg.
Which is the most powerful?
The Mercedes-Benz AMG C63 S E Performance makes the most power at 500kW. The Mercedes-Benz AMG C63 S E Performance is quickest to 100km/h in 3.4s.
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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