Also featuring standard all-wheel drive and an 8-speed automatic, the A6 TDI boasts up to 24 mpg city/38 mpg hwy. Both the A4 and A6 offer performance models. The sporty S4 touts a 333-hp 3.0-liter supercharged V6, while the S6 touts a 420-hp twin-turbocharged 4.0-liter V8. Audi A4 Avant vs Audi A6 Avant Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance. Select a car to compare. Purpose: Make: Model: Year: Variant: Compare Cancel. Change. 2024 Audi A4 Avant 2.0 35 TDI Black Edition. Select a car to compare. Purpose: Compare Cars A4 vs A6 Audi A4 vs Audi A6 Should you buy Audi A4 or Audi A6? Find out which car is best for you - compare the two models on the basis of their Price, Size, Space, Use our side by side comparison to help you make a decision. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict. When we compare the Audi A4's and the Audi A6's specifications and ratings, the Audi A4 has the advantage in the areas of new vehicle base pricing, resale value and overall quality score. The Audi A6 has the advantage in the areas of reliability, interior volume and base engine power. Audi A6 vs. Audi A4 Car Comparison Audi A6 vs. Audi A4 Car Comparison 2021 Audi A6 Shop Near Me 2021 Audi A4 Shop Near Me Overview 1 of 65 2021 Audi A6 All data based on quattro Sport Premium 45 TFSI trim Body Style Sedan Number of Cylinders 4 Cylinders Transmission Type Automatic Drivetrain AWD Fuel Type Gasoline City / Hwy / Combined mpg .

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