http://www.autoexpress.co.uk/news/64705/brake_fault_sparks_recall.html
"Porsche has issued its second recall of 2006, this time involving the Boxster, 911 and Cayman. More than 100 cars are affected by a faulty bearing which could cause the parking brake to fail. Owners of vehicles built from 22 November to 13 December 2005 will be contacted."