According to
this (and a few other sources), sales tax in Arizona maxes out at $975. In Maricopa county, the valley containing Phoenix, any car $15,476.19 or higher would cost the same amount. As far as I can tell, Big Two does not publish title and license fees, but Precision Toyota in Tucson says 1.68% of vehicle base price for the license fee and a title fee of $5.50, so that makes about $6,408.44 down.
Kelley Blue Book says a 2016 certified pre-owned Camry is worth $14,822, compared to the $13,572 she would pay over three years for the lease of a car two years newer.