Mercedes-Benz AMG A 45 S vs BMW Z4 Comparison 2026: Price, Mileage, Features

Comparison overview: The Mercedes-Benz AMG A 45 S starts at ₹87.00 L and the BMW Z4 at ₹87.90 L, a difference of ₹90.00 K ex-showroom. On-road in New Delhi that gap becomes roughly ₹99.90 K. Here is what the extra money actually buys.

Engine and performance: The Mercedes-Benz AMG A 45 S uses a 1,991cc Petrol making 415.71bhp@6750rpm and listed torque with Automatic. The BMW Z4 uses a 2,998cc Petrol making 335bhp@5000-6500rpm and listed torque with Automatic.

Mileage and running cost: The Mercedes-Benz AMG A 45 S Petrol Automatic is rated at 10 kmpl and the BMW Z4 Petrol Automatic at 12 kmpl. At 1,000 km a month, the BMW Z4 saves you about ₹1.75 K a month and ₹21.00 K a year on fuel.

What one gives that the other does not: The Mercedes-Benz AMG A 45 S adds Electronic Stability Control (ESC), ISOFIX Child Seat Mounts, Heads-Up Display (HUD), Global NCAP Safety Rating and Rear Spoiler. The BMW Z4 adds Traction Control, Hill Descent Control, Hill Assist, Outside Rear View Mirror Turn Indicators and Tyre Size. The rest of both spec sheets is shared.

Which one should you buy?

Buy the Mercedes-Benz AMG A 45 S if you drive mostly in the city, you want the lower running cost, and you would rather keep the ₹90.00 K for your down payment than spend it on features.

Buy the BMW Z4 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 AMG A 45 S offers Electronic Stability Control (ESC).

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.