Marmite
OK, then the link is wrong about highways.
Driving in Thailand & Rules of the Road - AngloINFO Bangkok (Thailand)
Rickshoppers
Thx for the explanation about tinted glass.
BTW, I dont have a IDL, but get along OK even so. And have rented cars around the world just on my home country diver's license without problems (but not yet in LOS).