If you're open to other options besides Dollar Thailand, there are other companies to choose from: Chic Car Rent offer car hire in Sai Mai, Bangkok from ‪£998‬ per day. Chic Car Rent car hire offer car rental in Sai Mai, Bangkok from ‪£1757‬ per day. Thrifty offer car rental in Sai Mai, Bangkok from ‪£1557‬ per day.