Audi S5 Sportback vs BMW X3 Comparison 2026: Price, Mileage, Features

Comparison overview: The Audi S5 Sportback starts at ₹73.57 L and the BMW X3 at ₹72.50 L, a difference of ₹1.07 L ex-showroom. On-road in New Delhi that gap becomes roughly ₹1.19 L. Here is what the extra money actually buys.

Mileage and running cost: These two figures are not like for like. The Audi S5 Sportback number is for the Petrol Automatic and the BMW X3 number is for the Diesel/Petrol Automatic, so compare the variants you are actually shortlisting.

What one gives that the other does not: The Audi S5 Sportback adds Power Door Locks, Anti-Theft Alarm, Side Airbag-Rear, Passenger Side Rear View Mirror and Rear Seat Belts. The BMW X3 adds Day & Night Rear View Mirror, Curtain Airbag, Electronic Brakeforce Distribution (EBD), Traction Control and Electronic Stability Control (ESC). The rest of both spec sheets is shared.

Which one should you buy?

Buy the BMW X3 if you drive mostly in the city, you want the lower running cost, and you would rather keep the ₹1.07 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 S5 Sportback offers Power Door Locks.

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.