Audi A8 L 70 TDI vs Audi A6 4.0 TDI

Audi A8 L 70 TDI

Sedan · Diesel · AWD

Audi A6 4.0 TDI

Sedan · Diesel · AWD

Car A

Audi A8 L 70 TDI

The Audi A8 L 70 TDI blends strong diesel performance and AWD confidence with efficiency that suits long road trips. It’s a premium choice with five seats and a useful 505 L trunk, best for buyers prioritizing power and all-weather comfort over cargo-maximizing needs.

5 seatsSedanDiesel5-star safety6.3 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 safetyAWD

Why compared same body typesame brandsame powertrainsame seatssame usage profilesimilar price

Usage fit

Family 54 / 63

City 31 / 32

Budget / value 25 / 44

Road trip 71 / 69

Performance 42 / 39

Cargo 28 / 29

Practical 33 / 45

Premium 68 / 65

Winter 70 / 70

Scores out of 100. Blue = Audi A8 L 70 TDI · Orange = Audi A6 4.0 TDI

Specs side-by-side

Spec Audi A8 L 70 TDI Audi A6 4.0 TDI

Values are representative — confirm for your market and trim.

Pros & cons

Audi A8 L 70 TDI

Abundant passing power from 340 hp and 800 Nm.
AWD traction supports winter and wet-road confidence.
Efficient for its class at 6.3 combined consumption on long trips.
Five seats and a 505 L trunk work well for family road travel.
Premium price of 86,700 may exceed budget-focused expectations.
Diesel powertrain may not align with your fueling preferences.
No electrified driving capability.
Five seats and a 505 L trunk may not satisfy larger families or cargo-heavy use.

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 70 TDI if…

Best fuel economy

Audi A8 L 70 TDI uses 6.3 L/100km vs 7.0 — a meaningful saving if you cover high mileage.

Pick Audi A6 4.0 TDI if…

Performance & capability

Audi A6 4.0 TDI is the choice if you want more power, speed, or all-weather capability.

Usage fit

Specs side-by-side

Pros & cons

Audi A8 L 70 TDI

Audi A6 4.0 TDI

Verdict

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