The trial court's elevation of defendant's driving under the influence (DUI) conviction from a misdemeanor to a felony because of a prior DUI manslaughter conviction, and sentence under the "Three Strikes" law to 25 years to life in state prison with the prior DUI manslaughter as one of his strikes, is affirmed, where: 1) the statutory scheme authorized the trial court to use the prior DUI manslaughter conviction both to elevate the current DUI to a felony and to serve as a strike; and 2) the statutory scheme is not unconstitutional.