My opinion regards to Nexon XM petrol is the engine is not very refined. After driving for sometime found I noticed 4 cylinder cars are better than 3 cylinder. You will face vibration in Nexon petrol engine. It's not a very refined engine and gear lever. Gear shifting is not smooth, I contact showroom but they say both the issue are normal for Tata Nexon. Disappointed with the car would have purchased something else.