Audi A6 4.0 TDI vs Mercedes-Benz CLS 250

Audi A6 4.0 TDI

Sedan · Diesel · AWD

Mercedes-Benz CLS 250

Sedan · Diesel · 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 safety340 hpAWD

Car B

Mercedes-Benz CLS 250

The Mercedes-Benz CLS 250 blends an efficient diesel (5.5 combined consumption) with relaxed performance for premium road trips. A 520 L trunk and five seats aid family use, but FWD and a premium price won’t suit everyone.

5 seatsSedanDiesel5-star safety5.5 L/100km

Why compared cross brandsame body typesame powertrainsame seatssimilar price

Usage fit

Family 63 / 54

City 32 / 35

Budget / value 44 / 34

Road trip 69 / 63

Performance 39 / 34

Cargo 29 / 29

Practical 45 / 35

Premium 65 / 60

Winter 70 / 30

Scores out of 100. Blue = Audi A6 4.0 TDI · Orange = Mercedes-Benz CLS 250

Specs side-by-side

Spec Audi A6 4.0 TDI Mercedes-Benz CLS 250

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 CLS 250

Low combined consumption (5.5) makes long journeys efficient for its class
Strong safety standing in its segment
520 L trunk and five seats support family road trips
Torquey diesel (500 Nm) and 7.5 s 0–100 km/h enable confident overtakes
FWD may limit traction in winter conditions
Not aimed at cargo‑heavy use despite a 520 L boot
Priced as a premium model (around 68,000)
Performance prioritizes smooth cruising over outright speed

Verdict

Pick Audi A6 4.0 TDI if…

Efficiency & everyday ease

Audi A6 4.0 TDI is the choice if fuel economy and city-friendly driving are your priority.

Pick Mercedes-Benz CLS 250 if…

Performance & capability

Mercedes-Benz CLS 250 is the choice if you want more power, speed, or all-weather capability.

Usage fit

Specs side-by-side

Pros & cons

Audi A6 4.0 TDI

Mercedes-Benz CLS 250

Verdict

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