Cityfile: New York's Most Notable and Influential

• Flavio Briatore, the Italian mogul, racing car enthusiast, and Heidi Klum's baby daddy, has dropped the price of his penthouse at One Beacon Court. The 4,485-square-foot condo, which Briatore put on the market for $25 million in September 2008, is now listed for $23 million. Meanwhile, his apartment at the Plaza is still available as a $65,000-a-month rental. [Cityfile, Domus]
• Brett Gorvy, co-head of post-war and contemporary art at Christie's, and Amy Gold, Christie's director of business development, have paid $3.45 million for half of Abigail Disney's co-op at 300 West End Avenue, which was divided in two. The couple sold their former apartment at 470 West End Avenue for $2.175 million back in June. [NYO]
• Columbia Grammar and Prep, the UWS private school, is in expansion mode. Psychiatrist David Leibow and his wife, Sandra, sold their brownstone at 32 West 94th Street to the school last month for $7.15 million. The school paid $6.15 million for another brownstone on the block last summer. [NYT] More

• It looks like Abigail Disney has found a new apartment to replace the West End Avenue co-op she recently sold: The Disney heiress and her husband, Pierre Hauser, are paying $12.16 million for a 16th-floor apartment at 15 Madison Square North. [Cityfile]
• Writer/director John Ridley paid $6.65 million for a 2,237-square-foot condo at 15 Central Park West in July 2008, relisted it a few days later for $13 million, and then dropped the price to $9.995 million last December. Now he's cutting his asking price some more: The three-bedroom pad is currently listed for $8.5 million. [Cityfile, Corcoran] More