2024 Mercedes Benz GLC300 Coupe 4matic for PetrolHeads: It’s equipped with a 258 HP 4 cylinder engine which produces 400 Nm of torque. NEW Mercedes Benz GLC Coupe can do 0-60 mp/h [0-100 km/h] in 6.3 seconds. The Mercedes Benz GLC300 Coupe top speed VMAX is electronically limited to 225 km/h (140 mph).