Can the primary driver of an vehcile insure it in his name if he is not the titled owner?
It is important for you to keep in mind that generally, if you
do manage to obtain insurance and the car is damaged, the payout
will go to the legal owner, not you. You have no insurable interest
in the car.
It's legal, but it's strongly, strongly recommended that you not
put a car title in someone else's name. Once you do, they own the
car. They can choose to keep it, drive it, move it and keep you
from operating it. You may think that will never happen, but
believe me as someone who works in a police department, we see the
complications of this every single day.