Mercedes-Benz GLA vs BMW 3 Series Long Wheelbase Comparison 2026: Price, Mileage, Features

Comparison overview: The Mercedes-Benz GLA starts at ₹49.70 L and the BMW 3 Series Long Wheelbase at ₹60.50 L, a difference of ₹10.80 L ex-showroom. On-road in New Delhi that gap becomes roughly ₹11.99 L. Here is what the extra money actually buys.

Mileage and running cost: The Mercedes-Benz GLA Diesel/Petrol Automatic is rated at 18.9 kmpl,17.4 kmpl and the BMW 3 Series Long Wheelbase Diesel/Petrol Automatic at 19.61 kmpl,15.39 kmpl. At 1,000 km a month, the BMW 3 Series Long Wheelbase saves you about ₹172.4096063718702 a month and ₹2.07 K a year on fuel.

What one gives that the other does not: The Mercedes-Benz GLA adds Curtain Airbag, Knee Airbags, 360 View Camera, Rear Spoiler and Projector Headlamps. The BMW 3 Series Long Wheelbase adds Anti-Theft Alarm, Traction Control, Anti-Theft Device, Anti-Pinch Power Windows and ISOFIX Child Seat Mounts. The rest of both spec sheets is shared.

Which one should you buy?

Buy the Mercedes-Benz GLA if you drive mostly in the city, you want the lower running cost, and you would rather keep the ₹10.80 L for your down payment than spend it on features.

Buy the BMW 3 Series Long Wheelbase 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: Mercedes-Benz GLA offers Curtain Airbag.

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.