The V6 diesel in the GLE350d Coupe is not greatly distinguished in either performance or fuel economy, giving away 55bhp and 4.7mpg to the similar-sized six-cylinder engine fitted to its most obvious rival, the BMW X6 xDrive40d.
However, the GLE's motor is pleasantly refined in all but the upper reaches of its rev range and, with a stout 457lb ft of torque on tap at 1600rpm, is flexible across a wide spread of revs. There's plenty of punch for overtaking, although an official 0-62mph time of 7.0sec and 140mph top speed is nothing special, being a respective 1.2sec and 9mph slower than the X6 xDrive40d.