Porsche 718 vs Mercedes-Benz AMG SL Comparison 2026: Price, Mileage, Features

Comparison overview: The Porsche 718 starts at ₹1.37 Cr and the Mercedes-Benz AMG SL at ₹2.34 Cr, a difference of ₹97.00 L ex-showroom. On-road in New Delhi that gap becomes roughly ₹1.08 Cr. Here is what the extra money actually buys.

Engine and performance: The Porsche 718 uses a 3,997cc Petrol making 493.49bhp@8400rpm and listed torque with Automatic/Manual. The Mercedes-Benz AMG SL uses a 3,982cc Petrol making 469.35bhp and listed torque with Automatic.

Mileage and running cost: These two figures are not like for like. The Porsche 718 number is for the Petrol Automatic/Manual and the Mercedes-Benz AMG SL number is for the Petrol Automatic, so compare the variants you are actually shortlisting.

What one gives that the other does not: The Porsche 718 adds Xenon Headlamps, Adjustable Headlamps, Fog Lights - Front, Fog Lights - Rear and Rear Window Defogger. The Mercedes-Benz AMG SL adds Side Airbag-Rear, Day & Night Rear View Mirror, Curtain Airbag, Anti-Pinch Power Windows and Speed Alert. The rest of both spec sheets is shared.

Which one should you buy?

Buy the Porsche 718 if you drive mostly in the city, you want the lower running cost, and you would rather keep the ₹97.00 L for your down payment than spend it on features.

Buy the Mercedes-Benz AMG SL 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: Porsche 718 offers Xenon Headlamps.

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.