^^ the mercedes has the european/african wide plate fixture - you can however get the US/Asian fixture for the car - its an entirely new bumper on newer cars while just a little clip on for older cars - the rear bootlid can be an issue though.
The plates in Karachi are equally pathetic, and what I did to my car was use blind bolts to mount it with nuts at the back - as the plate is a one time thing in Karachi - lose it and you lose your car. - The guy willing to steal my plates will have to take the bumper/bootlid with him.
Ive had a police waala pester my kid brother and tried to remove the plates from the car - hehe, he gave up.