Roads are much better now from
Dalaman and they are blasting the mountain as you drop down into
marmaris to make that road wider.
I travelled behind a coach last Friday from Dalaman to marmaris and clocked it doing 120 kmph for a long stretch with the bus bouncing and swaying side to side.
I gave up on a downward hill and passed it only to see it was full of tourists.
That was not a good way to treat new people to Turkey and no doubt they will all be reporting to someone