European stock futures point to a lower open on Wednesday, tracking overnight falls in the United States where economic data gave mixed signals on the prospects for an economic recovery. Futures for the Eurostoxx 50 STXEc1 are down 0.6 percent, German DAX futures FDXc1 are down 0.5 percent and French CAC futures FCEc1 are down 0.6 percent. U.S. stocks slipped on Tuesday as mixed economic data and Best Buy's disappointing sales spurred worries about a weak recovery.