Length Very good
The words “SiamCarRental” contains only three words. Can be used renting and sales of cars in Thailand.
SiamCarRental.com is a dot-com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like twitter.com. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.