It totally depends on the drive which maintains the car in good condition. The suspension system of Renault Duster comprises of Independent McPherson Strut with Coil Springs & Anti-Roll Bar in the front and Torsion Beam Axle with Coil Springs & Anti-Roll Bar at the rear which imparts precise handling and ride comfort even on bumpy roads.
The petrol variants of Duster and Terrano return a low mileage of around 12-13 kmpl, therefore it is advisable to go with diesel variants. Also, the K9K diesel engine performs better than the 1.6-litre petrol engine.
The procedure of procuring the keys for Renault Duster is a lengthy one. You would have to place a request with Renault service center. A technician would come to your place and unlock the steering and tow it to the service center. Your old lock would be replaced with a new one and new keys would come in 15 days. The cost of the keys would be Rs 4,500 per key. You would also have to take your RC booklet and Insurance papers to your service center.