We Buy Used Cars - Check Our Customer Reviews! At CarMark Hawaii we buy cars for cash in Honolulu. For over 25 years we have helped customers at our location in Aiea who want to sell a car, truck, SUV, or van for cash for whatever reason. Some are men and women of the military who are deploying, others have moved away from the island and needed to sell, and some simply needed cash in a … [Read more...]