Seat Auction
This is largely a Red2 Auction only auction model, which enables multiple winners for any one lot. The easiest example to explain this is concert seating. 10 seats are available (1 in the best position in the front row, 1 behind and so on). The winning bidder gets the best seat, the second highest the next location and so on. The auction rules are standard Forward auction, for an end date, auto bidding, auto extension, etc.