Audi A6 vs Audi S5 Sportback Comparison 2026: Price, Mileage, Features

Comparison overview: The Audi A6 starts at ₹63.74 L and the Audi S5 Sportback at ₹73.57 L, a difference of ₹9.83 L ex-showroom. On-road in New Delhi that gap becomes roughly ₹10.91 L. Here is what the extra money actually buys.

Engine and performance: The Audi A6 uses a 1,984cc Petrol making 241.3bhp@5000-6500rpm and listed torque with Automatic. The Audi S5 Sportback uses a 2,994cc Petrol making 348.66bhp@5400-6400rpm and listed torque with Automatic.

Mileage and running cost: The Audi A6 Petrol Automatic is rated at 14.11 kmpl and the Audi S5 Sportback Petrol Automatic at 8.8 kmpl. At 1,000 km a month, the Audi A6 saves you about ₹4.49 K a month and ₹53.88 K a year on fuel.

Space and practicality: The Audi A6 takes 530 litres against 480, about 50 litres more. That is roughly one extra cabin-size bag of extra room.

What one gives that the other does not: The Audi A6 adds Day & Night Rear View Mirror, Traction Control, Anti-Theft Device, Hill Descent Control and Hill Assist. The Audi S5 Sportback adds Power Door Locks, Side Airbag-Rear, Passenger Side Rear View Mirror, Rear Seat Belts and Side Impact Beams. The rest of both spec sheets is shared.

Which one should you buy?

Buy the Audi A6 if you drive mostly in the city, you want the lower running cost, and you would rather keep the ₹9.83 L for your down payment than spend it on features.

Buy the Audi S5 Sportback if you do regular highway runs, you carry luggage or a pram often, and you want Anti-lock Braking System (ABS) without waiting for the next facelift.

The one thing that settles it: Audi A6 offers Day & Night Rear View Mirror.

Before you sign anything:

Ex-showroom price is not what you pay. Add registration, road tax, insurance and handling, and expect the final figure to land ten to twelve percent higher. Road tax changes state to state, so a car that costs the same in two cities does not cost the same to own.

Ask the dealer four things before you book. What is the current waiting period for the variant you want. What is the on-road figure.

Then drive both cars back to back on the same day, on a road you actually use. Take your family. Put your usual luggage in the boot. Most people decide in the first ten minutes, and it is rarely for the reason they expected.