Smell that new car plastic and leather? You finally bought the ride, but keeping that factory shine takes more than a basic drive-through wash. A professional detail and paint protection film wrap stops road salt and gravel from chewing up your front bumper, though it easily runs about $1200.
Timing matters here, and you want to book this job immediately after taking delivery before the first scratch happens. Spring and late autumn are when detailers get quiet and might cut you a deal, but keep negotiation on the car price entirely separate from talking add-ons with the detail shop.
That 0% window is a hard deadline, not free money, and if you leave a single dollar on the card when those 18 months are up, standard interest kicks in on the whole original amount.