Since its July 2024 debut, the third generation Audi A5 saloon and Sportback has taken over from the outgoing A4, offering a sleeker fastback liftback body based on Audi’s new Premium Platform Combustion PPC. Engine options include two petrol four cylinders at 150 PS and 204 PS, a mild hybrid V6 in the S5 producing 367 PS, and two litre diesels with or without quattro, equipped with the new 48 volt MHEV system. The A5 is longer, wider, taller, and sits on an 80 mm longer wheelbase compared to the old A4.
In contrast, the current BMW 3 Series (G20) launched in 2018. It offers a wide range of engines from efficient petrol and diesel four cylinders up to the plug in hybrid 330e and the M3 performance variants. The chassis remains the benchmark reference in the segment thanks to its athletic balance and rear wheel drive feel, with xDrive available for added grip.
The Mercedes C Class entered its fifth generation in 2021. Its range includes petrol, diesel, and plug in hybrid options, with both saloon and estate variants. The C Class prioritises refined ride comfort and interior design appeal over outright sporty driving dynamics.
The Audi A5 stands out for its elegant exterior design and fastback practicality. It is larger and more spacious than its predecessor and offers a calm, composed ride on motorways. However, it does not currently offer full hybrids or plug in variants, which may affect its appeal to tax sensitive buyers. Steering and gearbox response are adequate for daily driving, but not class leading in terms of driver engagement.
Interior quality in the new A5 has dipped slightly compared to the outgoing A4, particularly in terms of material choices. While the virtual cockpit and OLED screens remain visually impressive, dashboard materials and tactile feedback feel less premium than before.
The BMW continues to deliver class leading driving engagement. Its chassis provides sharp steering and confident poise through corners, making it the most rewarding car in the segment for keen drivers. Interior materials are of high quality, and the layout feels intuitive and focused, though the design itself is more conservative than that of its rivals.
The Mercedes C Class offers the most luxurious and attractive interior in the segment. The cabin design features elegant shapes, premium materials, and advanced tech integration. Ride quality is smooth and composed, especially in plug in hybrid and petrol variants. However, it lacks the responsive handling and dynamic feedback found in the BMW.
So which is the best choice for a luxury German family saloon?
The BMW 3 Series remains the standout if you prioritise engaging dynamics, high material quality, and a well balanced engine lineup. The Audi A5 appeals with its styling, practicality, and quiet cruising ability, but its interior no longer feels like a class benchmark. The Mercedes C Class is ideal for those who want the most visually appealing and comfortable interior and are willing to trade a bit of driver involvement to get it.
In the end, your choice depends on your priorities. For the best driving experience and solid build quality, choose the BMW. For sleek design and day to day refinement, the Audi A5 makes a strong case. For the most luxurious cabin and comfort focused feel, the Mercedes C Class is hard to ignore.
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