New Delhi, Feb. 3 -- For a long time, the used car industry has measured success at the moment of purchase.

A buyer finds the right listing, the inspection report meets the buyer's requirement, the price feels fair, paperwork is completed, and the car is delivered. On the surface, the journey looks complete.

In reality, the real test begins after delivery.

At Cars24, years of continuous consumer feedback have shown that buyers judge their experience less by how smooth the transaction was and more by what happens once the car is used in real life. The daily office commute. Weekend grocery runs. Longer highway drives. Imperfect roads that no inspection can fully simulate.

One phase stood out repeatedly - the first 30 days after delivery...