Quote Originally Posted by Trebuchet View Post
It was the early '80's when we were there, so yeah. My recollection is that the car rental companies forbid taking them up there.
Ours was a standard 2 wheel drive rental vehicle hired from Hilo airport. The road was in excellent condition .. fully sealed (etc).
There doesn't seem to have been any volcanic intrusions or quakes along that route since then (its all seems pretty stable in that direction).