Tuning a 2010 Tata Vista Quadrajet

The original car is stripped down to its shell.

Armour is then welded on from the bottom up, starting with the quarter panels and the floor.

An exit hatch is put into the rear before the upholstery and glass is replaced.

Spot the difference: the finished fully-armoured Fortuner (L) looks identical to the regular SUV (R).

At highest level of protection, the glass can withstand fire from a sniper rifle.

Run flats can carry the car 60km away if the wheel deflates.

Exhaust pipe cover a small but vital security detail.

Stock hinges are replaced to deal with the added weight of armoured doors.

900kg of additional weightcalls for beefed-up suspension.

Protective shell around fuel tank is defense against IED and grenade attacks.

Armour is tested to withstand 350 rounds from an AK47.

Standard tyres are swapped for run flats. The rims also get a composite ring to keep you moving, should the tyres completely deflate.