Mercedes is intensifying tests for the all-new GLK SUV, a model which is expected to debut next year as a 2015MY. Death Valley is a well-known place where carmakers test their new models. T

The difficult weather conditions put the vehicles at work seriously, this being the case with the new GLK as well.

2015 Mercedes GLK spied

Under the bonnet we expect to see several units including a 2.0-liter four-cylinder engine producing from 184hp to 252hp, a 2.2-liter CDI with 170hp and 231hp but also a more potent 3.0-liter V6 developing 333 horses.

2015 Mercedes GLK spied

In terms of styling, the new model will sport revised bumpers, new front grille, bigger fenders, wheels and increased passenger space with more boot capacity as well.

2015 Mercedes GLK spied

More details on the new Mercedes GLK will be released by the company towards the end of this year. Even so, we don’t expect any official debut this year.

2015 Mercedes GLK spied