Audi A6: The Audi Car You Deserve

The Audi A6 offers 2.0 TFSI and 3.0 TFSI petrol engines (245-340 hp), 2.0 TDI and 3.0 TDI diesel engines (163-286 hp), and a 55 TFSI e plug-in hybrid with 367 hp combined output. All engines include 48V mild-hybrid technology as standard, and Quattro AWD is available across most of the range.

Used C8-generation A6 models (2018+) in Portugal range from approximately 28,000 EUR for a 2019 40 TDI to over 50,000 EUR for a well-equipped 55 TFSI e hybrid. The popular Avant estate version typically adds 2,000-4,000 EUR over the equivalent saloon. Older C7 models start from around 15,000 EUR.

The 40 TDI A6 with mild-hybrid achieves approximately 5.5 to 6.5 litres per 100 km in mixed driving, suitable for high-mileage Portuguese business use. The TFSI e plug-in hybrid can deliver under 2.5 l/100 km on the WLTP cycle, though real-world figures depend heavily on charging frequency and journey length.

On C8 models, verify that both MMI touch screens are responsive and free of dead zones, as replacements are expensive. Check the air suspension (if fitted) for even ride height across all corners, and ensure the 48V mild-hybrid system is functioning by observing the start-stop and coasting behaviour. Confirm Quattro service intervals have been respected.

The A6 offers the most advanced interior technology with its dual-screen MMI system and superior Quattro all-weather capability. The BMW 5 Series provides the most engaging driving dynamics in the class, while the Mercedes E-Class leads on rear-seat comfort. All three hold comparable residual values in Portugal.

The 2020-2022 C8 A6 models offer the best value, as they include all production refinements, updated driver assistance systems, and have depreciated enough to be significantly more accessible than new. The 40 TDI Quattro Avant is the most versatile choice for Portuguese families and business users alike.