2025 Giulia vs 2025 Mercedes-Benz C300
If the 2025 Alfa Romeo Giulia and the 2025 Mercedes-Benz C300 are both on your shortlist, you’re weighing two luxury sedans that look similar on the surface but feel noticeably different once you’re behind the wheel. The C300 is polished, tech-forward, and refined in a way that’s hard to fault. The Giulia brings more horsepower, more torque, and a driving character that sets it apart from most sedans at this price point. Our team at Alfa Romeo of Toronto has put together this detailed comparison so you can figure out which one is the right fit before you visit the showroom.
What’s New in the 2025 Alfa Romeo Giulia?
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Performance
Both the Giulia and the C300 run a 2.0L turbocharged four-cylinder engine, but the Giulia pulls ahead where it matters most. With 280 horsepower and 306 pound-feet of torque, Brembo four-wheel disc brakes, and a rear-biased Q4 AWD system, it’s built with a performance-first mindset that gives it a more driver-focused feel through corners. The Mercedes-Benz C300 4MATIC answers with 255 horsepower and 295 pound-feet of torque, paired with a mild hybrid system that adds efficiency and smoothness. Where the C300 focuses on composure, the Giulia focuses on engagement.
| Specifications | 2025 Alfa Romeo Giulia | 2025 Mercedes-Benz C300 |
| Engine Type | 2.0L Turbocharged I4 Engine | 2.0 Turbocharged I4 + Mild Hybrid |
| Horsepower | 280 hp | 255 hp |
| Torque (lb-ft) | 306 lb-ft | 295 lb-ft |
Exterior
The Giulia’s exterior is lean and purposeful, with a low 1,435 mm roofline, sculpted bodywork, and standard Brembo calipers visible through its 18-inch wheels. The C300 takes a more classically elegant approach, with a longer, wider stance and a standard power tilt/sliding glass sunroof not offered on the Giulia at base trim. Both are attractive cars, just pulling in different stylistic directions.
Interior & Safety
Inside, the Giulia impresses with standard leather-faced heated front and rear seats, a heated steering wheel with aluminum paddle shifters, dual-zone climate control, and an 8-speaker audio system with integrated navigation. The Alfa DNA drive mode selector reinforces the car’s sporting intent throughout. The C300 counters with a more tech-forward feel, highlighted by its 9G-TRONIC-integrated display and standard Active Parking Assist.
On safety, both are well-equipped. The Giulia includes forward collision warning, blind-spot assist, lane keep assist, and adaptive cruise with stop-and-go, while the C300 adds Crosswind Assist and Adaptive Highbeam Assist to its already strong package.
2025 Giulia vs Mercedes-Benz C300 Verdict
The 2025 Mercedes-Benz C300 4MATIC is a thoroughly accomplished luxury sedan as it’s refined, tech-forward, and comfortable in a way that’s hard to fault. But the 2025 Alfa Romeo Giulia was built around a different set of priorities with more horsepower, more torque, Brembo brakes, and a rear-biased AWD system that makes it the more engaging car to drive. If a luxury sedan is something you use to get from A to B, the C300 makes a compelling case. If it’s something you actually look forward to driving, the Giulia makes a stronger one.
Test Drive the 2025 Alfa Romeo Giulia at Alfa Romeo of Toronto
The best way to know if the 2025 Alfa Romeo Giulia is the right car for you is to drive it. Visit us at 550 Adelaide St E, Toronto, ON, or call 866-474-1963 to book your test drive. Our team is happy to walk you through the Giulia and any other models in the Alfa Romeo lineup, including the 2025 Stelvio, at your own pace.