I booked on expedia.ca and paid $265.(canadian$) for 9 days.
Booking directly on Thrifty or Dollar's websites would have been $427.-$459. U.S. for the same vehicle....plus exchange and credit card fee......would be approx. $547.-$574. canadian$$.
A substantial savings.
Additional driver fee is $9.95 per day.....if I could get it down to $5., I'd be happy.