Audi A6 4.0 TDI vs BMW M550i xDrive

Audi A6 4.0 TDI

Sedan · Diesel · AWD

BMW M550i xDrive

Sedan · Gasoline · AWD

Car A

Audi A6 4.0 TDI

A quick, long-range AWD V8 diesel aimed at premium buyers, pairing 4.4 s 0–100 km/h pace with an efficient 7 L/100 km. Seats five with a 530-liter trunk, making it ideal for road trips while being less compelling for city-first use.

5 seatsSedanDiesel5-star safety7 L/100kmAWD

Car B

BMW M550i xDrive

A premium AWD saloon that pairs very quick acceleration with real everyday space, the M550i xDrive shines on fast, long-distance journeys. Higher fuel use and premium pricing make it less compelling for city-heavy or budget-led use.

5 seatsSedanGasoline5-star safety530 hpAWD

Why compared more powercomparison picksame body typesame ranking profilesame seatssimilar price

Usage fit

Family 63 / 62

City 32 / 26

Budget / value 44 / 36

Road trip 69 / 68

Performance 39 / 47

Cargo 29 / 29

Practical 45 / 39

Premium 65 / 69

Winter 70 / 70

Scores out of 100. Blue = Audi A6 4.0 TDI · Orange = BMW M550i xDrive

Specs side-by-side

Spec Audi A6 4.0 TDI BMW M550i xDrive

Values are representative — confirm for your market and trim.

Pros & cons

Audi A6 4.0 TDI

AWD traction for winter and mixed-road confidence on long trips
800 Nm torque and 4.4 s 0–100 km/h for effortless overtakes
Efficient for its class at 7 L/100 km, reducing fuel stops
Five seats and a 530 L trunk suit growing families and luggage
Weak fit for city driving per signals; shines more on open roads
Not built for cargo-heavy use despite a generous trunk
Premium price around 75,000 may exceed some budgets
Only five seats; no third row for larger families

BMW M550i xDrive

Very strong performance for its class (530 hp, 0–100 km/h in 3.8 s).
AWD traction supports winter and mixed-weather driving.
Five seats and a 530 L boot suit growing families and road trips.
Well suited to premium buyers who prioritize fast, long-distance travel.
Combined consumption of 10.5 L/100 km may stretch fuel budgets.
Saloon body is less flexible for bulky cargo.
Performance focus can feel like overkill for short, stop‑start city commutes.
Premium pricing limits affordability versus more modest alternatives.

Verdict

Pick Audi A6 4.0 TDI if…

Best fuel economy

Audi A6 4.0 TDI uses 7.0 L/100km vs 10.5 — a meaningful saving if you cover high mileage.

Pick BMW M550i xDrive if…

More power

BMW M550i xDrive puts out 530 hp vs 340 — meaningfully quicker and more confident on motorways.

Usage fit

Specs side-by-side

Pros & cons

Audi A6 4.0 TDI

BMW M550i xDrive

Verdict

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