Start your engines! David Beckham's $150,000 matte black Porsche goes up for sale on eBay

By DAILY MAIL REPORTER For sale: David Beckham's convertible black Porsche is up for sale on eBay David Beckham's matte black Porsche 911 Convertible Turbo is being sold on eBay.The supercar, for which the sportsman paid $100,000 in 2008, before spending a further $50,000 on customising, has a current bid of $134,000.The LA Galaxy star even had his shirt number, 23, stitched into the leather se...