11 Fla. L. Weekly Supp. 109a
Insurance — Uninsured motorist — Action for declaratory relief brought by passenger injured when uninsured motorist collided with rental car in which passenger rode to determine whether carrier of passenger’s automobile policy or carrier of supplemental liability insurance and UM coverage purchased under rental agreement, or both pro rata, had primary UM coverage on passenger’s claim — Issue of primary coverage is not premature despite fact that passenger has not been awarded UM benefits where both insurers have denied coverage, thereby preventing passenger from proceeding with claim and leaving passenger no alternative but to bring declaratory judgment action — UM coverage of passenger’s automobile insurance policy is primary where passenger has right to expect insurer to respond with primary coverage of any UM claims in return for payment of premiums for coverage — Moreover, where passenger’s insurance policy agrees to pay any UM loss sustained which is not covered by other UM coverage, and supplemental liability insurance policy is excess policy which looks first to underlying insurance and other collectible insurance available before its coverage is activated, passenger’s loss is not covered by supplemental policy until passenger’s own policy has been exhausted