New Mercedes-AMG GLE 63 spotted on test again

- Big change to come in the form of the now popular four-litre twin turbo V8 replacing the old 5.5-litre unit 

- It will feature the controversial elongated taillights that cut across the taillights 

- A less powerful GLE 53 expected with around 435bhp 

It’s an open secret that Mercedes-AMG will have to downsize the engine for the GLE from a 5.5 to a 4-litre twin-turbo V8. However, it's going to churn out a lot of power, at least matching the 612bhp of the E-Class sedan. 

The camouflage is gradually being peeled off this new performance SUV, giving a pretty good idea of what it looks like. Right above the oversized air intakes at the front is the new Panamericana grille. The headlights feature two LED brows at the top, much like the E-Class. One noticeable change over the GLE 63s seen so far are those bars added to the roof. 

The rear of all GLE models will feature the controversial elongated taillights that cut across the taillights. And, different from the CLS 53’s configuration, this AMG isn't shy about flaunting its quadruple square exhaust tips.

Speaking of which, it has to be mentioned that a less powerful GLE will also wear the AMG badge. Replacing the GLE 43, a "53" model will adopt the new inline-6 configuration, offering about 435 horsepower.