Preston Automotive Group
Douglas Mummert is an experienced automotive industry professional currently serving as General Manager at Preston Automotive Group since May 2018 and at Hertrich Buick GMC Seaford since November 2016. Prior to these roles, Douglas held the position of General Manager at Preston Hyundai from February 2016 to August 2016 and served as Sales Manager at The Hertrich Group from January 2006 to February 2016.