It is given that Esteem is second to the right of i10. Punto, who is the neighbor of Alto is parked diagonally opposite to i10. We can draw the diagram as shown below.
Alto
Punto
i10
Esteem
Swift is parked in front of Alto and SX4 is parked to the immediate right of Alto..
SX4
Alto
Punto
i10
Swift
Esteem
We have arranged all six cars according to the conditions given in the question. Now we are asked to interchange SX4 and Esteem's positions mutually and then figure out the car(s) adjacent to Esteem. These cars should be same as SX4 in the original arrangement. From the diagram, we can see that only Alto will be adjacent to Esteem in new position. Therefore, option C is the correct answer.