2025 Cadillac CT4 vs 2025 Audi A3: Sedan Comparison
July 11 2025,

If you're eyeing a premium compact sedan in 2025, both the Cadillac CT4 and Audi A3 offer standout choices. Each model brings sharp styling and modern tech, but when you look closer at performance, efficiency, and feature content, people are curious which car starts to pull ahead. Let’s explore how these two well-matched sedans compare, and which one might just be the more compelling option.
Turbocharged Performance That Goes Further
Under the hood, both sedans feature a 2.0-litre turbocharged engine, but the Cadillac CT4 squeezes more strength from its powertrain. With 237 horsepower at 5,000 rpm and 258 lb-ft of torque kicking in at just 1,500 rpm, the CT4 delivers punchy low-end acceleration and highway confidence. Audi’s A3 offers 201 horsepower and 236 lb-ft of torque, along with a 7-speed S-tronic transmission. While responsive, the CT4’s 8-speed automatic feels smoother and more balanced, especially in daily driving. Acceleration is close on paper with the A3 doing 0–100 km/h in roughly 6.5 seconds but the CT4’s broader torque band makes it feel more flexible and relaxed in real-world conditions.
Greater Efficiency Without Sacrificing Performance
Drivers looking to maximize value will appreciate the CT4’s fuel economy. Rated at 10.6 L/100km in the city and 7.3 L/100km on the highway, it offers efficient performance without compromising power. In comparison, the Audi A3 posts a combined rating of 8.5 L/100km. That means Cadillac drivers might not enjoy more range between fill-ups, especially on long drives but a comparatively lower fuel economy is expected with more power output.
Next-Level Interior Tech and Comfort
Inside, both cabins are well-appointed, but the Cadillac CT4 layers in more modern convenience and infotainment features. Audi includes a 10.3-inch touchscreen, a 6-speaker audio system, and basic smartphone integration with CarPlay, Android Auto, USB, and Bluetooth.
The CT4 goes a step further with an 8-speaker premium audio system, SiriusXM with 360L, and a large 12-inch HD reconfigurable driver cluster. It also supports wireless Apple CarPlay and Android Auto, Bluetooth streaming, and even includes wireless device charging and hotspot capability features that elevate everyday driving.
Premium Wheel Options and Design Details
The CT4’s exterior is all about choice and polish. It comes with a range of 17- and 18-inch alloy wheel options, including Diamond Cut and Pearl Nickel finishes. Self-sealing and run-flat tire options add to convenience and safety, making the CT4 ready for Canadian roads and conditions.
While the 2025 Audi A3’s refresh offers both 17 and 18 inch wheels too, a new 24-pixel LED daytime running lights and mild styling tweaks to the bumper and grille. However, the Cadillac provides more customization in wheel designs and tire setups that combine form and function.
Why the CT4 Has the Upper Hand
When comparing side by side, the 2025 Cadillac CT4 stands out not only for its stronger horsepower and torque but also for its smoother 8-speed transmission and better highway fuel economy. It delivers more technology where it counts: from a wireless, connected infotainment system to added wheel and tire options. Combined with Cadillac’s signature styling and interior refinement, it creates a sport sedan that feels tailored to modern Canadian drivers.
The Cadillac CT4 brings a well-rounded edge in many categories. If you're leaning toward Cadillac CT4 latest offering, visit Frost Cadillac in Brampton, ON to explore the CT4 in more detail and see how it fits your lifestyle.