The original Sumo was a big hit with private buyers and the yellow plate market alike. It was one of Tata's best seller by far. But the same cannot be said of the Grande which didnt sell that much and was outdone by better products from rival companies. Now Tata Motors is set to give the Sumo Grand a makeover and design cues are said to be coming from the new Range Rover / Land Rover SUVs. Things will remain same under the hood, the 2.2 Liter DICOR turbo diesel engine with the variable geometry turbo charger will be retained, along with the rear wheel drive layout that the current version of the Grande comes with.
It is also said that all of Tatas products will take engineering inputs from LR which I think is a way in the right direction. Here are some design sketches of the Sumo Grande facelift
Source: indiancarbikes.in