The Mercedes-Benz GLS specifications rest on two 3.0 litre inline-six engines, both with 4MATIC and mild-hybrid help. A nine-speed automatic is standard across the range. Seven seats define the body and its purpose. The two engines are closely matched on paper. Only the fuel and the torque really separate them. Weight is high, as expected for this size.
The petrol 450 makes 375 bhp and revs smoothly. The diesel 450d produces 362 bhp but a far larger 750 Nm of torque. That torque suits moving this heavy seven-seater with ease. Both drive all four wheels through 4MATIC.
Both engines carry the same ARAI rating of 12 kmpl, modest for a large inline-six SUV. The diesel usually feels more frugal on long highway runs. The car's weight keeps real figures lower. Read the GLS fuel figures in full to compare.
At 5209 mm long on a 3135 mm wheelbase, it is a genuinely big SUV. The tank holds 90 litres and there are seven seats across three rows. Width is 2157 mm and height 1823 mm. Ground clearance is 200 mm for rough roads. The kerb weight is high, given the size and seven seats. The petrol is 2999 cc and the diesel 2989 cc.
The six trims are three styling levels of the same two engines. Standard, AMG Line and Night Edition each add a little to the price. The petrol 450 opens the range at ₹132.07 Lakh. Follow the GLS price ladder from base to Night Edition to place your budget.