Renault Kwid AMT manufacture problems

The Renault Kwid Automatic is the worst car we could have bought. Bought it brand new, and only 2 months in the car started giving problems. In and out of the work shop without them knowing what the problem is really. Engine just cuts while driving and car loses gears. Currently sitting at a Renault workshop yet again, they are still trying to fix it, has been 10 months already!!! Really disappointed in Renault! Why could they just not give us another car? Clearly there is a manufacturing problem, and now its costing us money and time. Please Renault, sort this out! This is a truly bad experience with a brand new car!