Does the car is suitable for travelling 400 km

Yes, you can take Mahindra KUV100 NXT for long drives there won't be any such issues. But it would be great if you can take adequate breaks in between your journey. Moreover, having a test drive would be a good move to clear your all doubts regarding the car performance. You can click on the following link to see the details of the nearest dealership and selecting your city accordingly - Car Showrooms.

I have drived 1040 km in single day not even a single problem proud to be great of kuv100nxt