Audi A8 L 50 TDI vs Audi A6 4.0 TDI

Audi A8 L 50 TDI

Sedan · Diesel · AWD

Audi A6 4.0 TDI

Sedan · Diesel · AWD

Car A

Audi A8 L 50 TDI

A premium AWD diesel with strong torque and long-haul efficiency, the A8 L 50 TDI suits road trips and year-round commuting. It’s quick and spacious for five with a 505 L trunk, but it won’t satisfy tight budgets or cargo-heavy needs.

5 seatsSedanDiesel5-star safety6.7 L/100kmAWD

Car B

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 safety340 hpAWD

Why compared same body typesame brandsame powertrainsame seatssame usage profilesimilar price

Usage fit

Family 54 / 63

City 30 / 32

Budget / value 24 / 44

Road trip 71 / 69

Performance 40 / 39

Cargo 28 / 29

Practical 33 / 45

Premium 67 / 65

Winter 70 / 70

Scores out of 100. Blue = Audi A8 L 50 TDI · Orange = Audi A6 4.0 TDI

Specs side-by-side

Spec Audi A8 L 50 TDI Audi A6 4.0 TDI

Values are representative — confirm for your market and trim.

Pros & cons

Audi A8 L 50 TDI

Diesel efficiency (6.7 L/100 km) supports long-distance road trips
600 Nm torque and 286 hp make overtakes effortless
AWD adds confidence in winter and poor weather
505 L trunk and five seats suit growing families
Price of 86,900 doesn’t align with budget-focused priorities
Diesel-only powertrain won’t suit buyers avoiding diesel
Not designed for cargo-heavy hauling despite a large trunk
0–100 km/h in 5.9 s may not satisfy maximum-acceleration seekers

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

Verdict

Pick Audi A8 L 50 TDI if…

Best fuel economy

Audi A8 L 50 TDI uses 6.7 L/100km vs 7.0 — a meaningful saving if you cover high mileage.

Pick Audi A6 4.0 TDI if…

More power

Audi A6 4.0 TDI puts out 340 hp vs 286 — meaningfully quicker and more confident on motorways.

Usage fit

Specs side-by-side

Pros & cons

Audi A8 L 50 TDI

Audi A6 4.0 TDI

Verdict

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