Current event opens 8:00am on 23 January and runs through 31 January at Westworld of Scottsdale, 16601 North Pima Road, Scottsdale, AZ 85260
Here's their site: Home - Barrett-Jackson Auction Company - World's Greatest Collector Car Auctions
Pulled info from Mustang News about: What will Ford Performance auction for charity this year? A first production 2017 Ford GT? A special one-off Shelby GT-350? (I'll add: FoRS?) We’ll find out very soon.
Ford to roll large at 2016 Barrett-Jackson Scottsdale event - TheMustangNewsTheMustangNews
Auction goes live on Velocity at 4:00pm on Wednesday, January 27, 2016 (*All times are MST and are subject to change.)