So, to be better prepared for, and less disappointed by adaptation: As you buy your new car, acknowledge that the thrill won't be quite the same two months after you own it. Spend less time looking for the perfect thing {maximizing}, so that you won't have huge search costs to be "amortized" against the satisfaction you derive from what you actually choose. Remind yourself of how good things actually are instead of focusing on how they're less good than they were at first.
To better handle your expectations regarding adaptation, it's important to recognize that the excitement of buying a new car will fade over time. Anticipate that the initial thrill won't last, as the novelty diminishes after a month or two. Instead of obsessing over finding the perfect item, which can lead to unnecessary search costs, aim for a reasonable choice that fulfills your needs.
Additionally, shift your focus toward appreciating the positives of your choices rather than comparing them to their initial appeal. By reminding yourself of the good aspects and valuing your decisions, you can enhance your satisfaction and reduce feelings of disappointment over time, as highlighted in Barry Schwartz's "The Paradox of Choice."