We will need a car for 3 days from Oslo in late September and what company do you recommend. Also- is it like Iceland where you are "strongly encouraged" to get total insurance (which I am doubtful of in Norway, but asking anyway...).
I will be driving from Oslo up to Aurland (2 nights), and plan to drive the small circle around Sognefjord, then back to OSL to spend the night as we depart the next day.