Listen for suspension rattles—Oahu’s potholes are legendary.

On Oahu, demand almost always outstrips supply. New cars often come with "market adjustments" (a fancy word for markups) that can range from over MSRP.

If you want a specific new model, be prepared to wait up to 45 days or more for it to arrive by ship. 2. Used vs. New: Where to Put Your Money

Island Wheels: The No-Nonsense Guide to Buying a Car on Oahu

Island life is hard on cars. The salt air and humidity can cause "island rot"—rust that starts in the wheel wells and moves inward.