Audi A6 4.0 TDI vs Mercedes-Benz AMG GT 4-Door

Audi A6 4.0 TDI

Sedan · Diesel · AWD

Mercedes-Benz AMG GT 4-Door

Sedan · Gasoline · FWD

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

Mercedes-Benz AMG GT 4-Door

A high-performance luxury four-door that pairs extreme speed with real road-trip usability thanks to four seats and a 456 L trunk. Best for drivers prioritizing performance and comfort over fuel efficiency and city convenience.

4 seatsSedanGasoline5-star safety639 hp

Why compared more powercomparison picksame body typestep-up price

Usage fit

Family 63 / 48

City 32 / 22

Budget / value 44 / 15

Road trip 69 / 65

Performance 39 / 51

Cargo 29 / 22

Practical 45 / 24

Premium 65 / 75

Winter 70 / 30

Scores out of 100. Blue = Audi A6 4.0 TDI · Orange = Mercedes-Benz AMG GT 4-Door

Specs side-by-side

Spec Audi A6 4.0 TDI Mercedes-Benz AMG GT 4-Door

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

Mercedes-Benz AMG GT 4-Door

3.2 s 0–100 km/h and 315 km/h top speed for serious performance
639 hp V8 biturbo with 900 Nm delivers effortless passing
Four-seat cabin and 456 L trunk support long-distance travel
Safety is a noted strength for this high-output four-door
Combined consumption of 11.3 L/100 km is thirsty
Price of 91,800 sits well above mainstream options
Seats four only, so no middle rear seat for larger families
Strong performance and size make it less suited to tight city driving

Verdict

Pick Audi A6 4.0 TDI if…

Best fuel economy

Audi A6 4.0 TDI uses 7.0 L/100km vs 11.3 — a meaningful saving if you cover high mileage.

Pick Mercedes-Benz AMG GT 4-Door if…

More power

Mercedes-Benz AMG GT 4-Door puts out 639 hp vs 340 — meaningfully quicker and more confident on motorways.

Usage fit

Specs side-by-side

Pros & cons

Audi A6 4.0 TDI

Mercedes-Benz AMG GT 4-Door

Verdict

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