CH-53 or S-64... You're still going to need to drop somebody down on top of the car to break windows and attach a big strap. ...and then get-outa-Dodge before the heavy lifting begins.
I'd feel a whole lot safer hanging from a line stretched across the canyon.
All the prep work would have to be done before the helo arrived and then someone would have to be on top of the car to handle the rigging.
Would only be useful for removing the car, not for a body recovery.
I once spent half a day riding around in the back of a H-53 where the only available seat was a forklift that was being moved from the big deck to the last small boy visited.
And I spent a lot of time moving and working with MH-53s on a LPD. That's a small place to operate with four of them.
Many helos are up to the task of removing that car, but it's not practical. It's going to have to be done the old fashioned way. When it's safe. Unless someone caves to the Thai government pressure.........................DUG