Well it would be better to take the higer APR and have both your names on the loan documents, this way you will have the choice of who you want to be the primary driver for insurance. This will also help you rebuild your credit rating, so you don't have to go into the hassle of doing this in the future, for a few dollars more a month it is an excellent investment.
Now if she just goes on the loan documents, you will have to look at your agreement, if it states the holder has to be the primary on insurance because of the loan, then she will be have to be on it, but you would most likely get cheaper insurance this way.
So basicly if you want the cheap road go put the Loan, Car and Insurance in her name with you as an occasional driver.
And if you want to rebuild your credit take the higher APR put the Loan in both names, the car in just your and the Insurance in your name. This is better for the future.
I had the same problem, when I went to buy my new car six months ago, I went the way of rebuilding my credit.



