Plate 'P 7' Sells for Record $15 Million in Charity Auction

Anonymous buyer purchases coveted Dubai license plate in bid to display wealth.
Entire proceeds of the sale will be donated to Emirati ruler's international food aid program.
The sale surpasses previous record of $14.2 million paid for plate '1' in 2008.
Wealthy individuals commonly acquire rare license plates in Gulf region as a status symbol.