Since its launch in 2011, the Jeep Grand Cherokee has been something of a transition model for Jeep. Part of the larger Chrysler organisation, the all-American off-road 4x4 manufacturer has been through a turbulent few years after parting ways with Mercedes and the global recession. Having taken a big economic hit, Jeep began to look more stable under the ownership of Fiat and things could be looking up. However, for that to be properly realised, 4x4s like the Grand Cherokee will have to up their game. It uses the same platform as the Mercedes M-Class, but it's powered by a 3.0-litre V6 diesel engine that was developed by Fiat – not a common pairing. The exterior has been given something of an update to make it feel more European, adding a sleeker front grille and LED daytime running lights. The Jeep Grand Cherokee comes in five main specifications – entry-level Laredo, then Limited, Overland, top-of-the-range Summit and petrol-model SRT8. All are well equipped: if you bought an equivalent Land Rover Discovery 4, you'd have to spend quite a chunk of change on optional extras to get it to the same level of equipment.