How do you track why people switch car brands after just one purchase?

Exit surveys alone usually miss this because people don't always know *why* they switched — or won't admit it. I'd combine a short post-purchase NPS survey (3-6 months after buying) with a follow-up trigger if they don't return at the 12-month mark. Lost customer interviews, even just 10-15 calls, will honestly tell you more than any survey volume.