The Mercedes-Benz G-Class specifications describe serious off-road hardware wrapped in a luxury cabin. Permanent four-wheel drive and three locking differentials are standard. Two inline-six diesels are on offer across the range. The hardware is built for genuine off-road use. The tall body shapes every figure on the sheet. Weight is high for a five seat car.
The G 400d runs a 2925 cc inline-six diesel with 326 bhp and 700 Nm. The G 450d steps up to a 2989 cc mild-hybrid inline-six with 362 bhp and 750 Nm. Both use a nine-speed automatic and drive all four wheels. The 450d is the newer and stronger unit.
On fuel the G 400d is rated at 6.1 kmpl, a figure that reflects its weight and boxy shape. Mercedes-Benz has not published an ARAI number for the 450d mild-hybrid diesel. We will not guess one, so treat its economy as unconfirmed for now.
The body stands a tall 1969 mm high on a 2890 mm wheelbase, with 241 mm of ground clearance. The tank holds 100 litres and it seats five with a 480 litre boot. Length is 4817 mm and width 1931 mm. The upright shape hurts aerodynamics but aids visibility. The 100 litre tank adds long touring range. Its economy trails every other model here.
The rugged hardware and heavy body explain the modest fuel figures. Off-road and city use will pull real returns lower still. The 100 litre tank offsets the thirst on long drives. See what each G-Class trim costs at this level before deciding.