8 hours a day for 3 days is my limit so far. Been up to Thai/Myanmar border before in a Merc E-class.
My target would be Inle lake Myanmar... nice long drive up the mountains. I've driven Myanmar van from Yangon to Inle before (without GPS in the past) and feel that I can do it in my own car too.
Realised that as long as you don't stop in really dangerous areas. Myanmar north of Yangon is relatively safe. I used to be heartbroken every time I had to have my car washed by the manual car wash. Now? I haven't washed my car(s) myself for 2 years already. And if I'm gonna get robbed, I'm gonna get robbed, hopefully they won't kill me. Yes, additional insurance is required. And bring a pack of octane boosters AND quite a bit of white cloth to filter the illegal fuel in Myanmar north of Yangon.
Suipalucsea! I'm glad I set you thinking about this! You got a supercar now. Once you get it run in, you'd be dying to use it more. By that time my car must have come. Wanna go? Thailand is boring destination, let's try to make Myanmar.
The Myanmar trip was inspired by a certain John Chow (Singaporean) check this (he didn't make it to Myanmar) but for a fact I know Myanmar is even safer than Thailand:
John Ewing-Chow goes to Thailand