How do I know whether a listed vehicle actually starts?

Check the "Auction Verification" or "Run Status" field on the listing — it will usually say something like "Starts," "Engine Start Program," "Runs and Drives," or "Stationary." These are intake-time assessments performed by the storage facility, not guarantees, and conditions can change between intake and pickup (a battery can die, for instance). If a status isn't listed at all, treat the vehicle as unverified and inspect in person if possible before bidding heavily.