Car Rental at Changi Airport (SIN) from $118

If you don't possess a driver's license issued in Singapore, then it's likely you'll need to get an International Driving Permit (IDP) in your place of residence to be able to rent a car. You should also note that if an IDP is required, it has no validity on its own. You'll be asked to show your current driver's license your passport and other forms of ID as well. Lastly, it's important that the credit card used to book the rental vehicle matches the name on your driver's license and passport. Some added requirements for international car rentals are:

• Age restrictions: You'll need to be at least 25 in most countries to rent a car. If you're younger than that, it may still be possible to rent a car but you'll have to pay a Young Driver's Surcharge. Additional restrictions may also apply to what kinds of cars you can rent.
• Driving limitations: Be sure to read the fine print before you drive off the lot. Usually, you can't cross country borders, drive onto ferries or on certain types of rugged terrain with your rental car.