Press Releases

Manheim Announces Three New General Managers in the West and Central Regions

ATLANTA – June 7, 2023 – Tapping its bench strength of proven talent, Manheim has named three new general managers for its operating locations in Dallas, Portland and Kansas City. These leaders represent a combined 40 years of experience working closely with Manheim’s clients and teams to achieve mutual success.

“Manheim is fortunate to have such a strong roster of leaders with deep knowledge of our industry, our company and what our clients need to be successful,” said Alan Lang, division vice president at Manheim. “Their career progressions within Manheim are great examples of how our company grows and fosters strong leaders within our organization.”

  • Glenna Bishop is the new general manager for Manheim Dallas-Fort Worth. Her career with the company began in 2014 with Cox Media Group. Two years later, she joined Manheim as a marketing and promotions manager at Manheim Palm Beach followed by field marketing manager for the Florida Region where she focused on driving ROI through event sales and strategic client partnerships. Most recently, Bishop was the assistant general manager at Manheim Fort Lauderdale. While there, she helped create the South Florida Market Center, merging leadership and strategy between Manheim Fort Lauderdale and Manheim Palm Beach, and led the sales, operations and vehicle entry departments. She holds a bachelor’s degree from Wright State University and an MBA from Ashford University.
  • John Duplanty has been named general manager of Manheim Kansas City. A 15-year member of the Manheim team, Duplanty began his career as operations manager at Manheim Tampa followed by general manager positions at Manheim Arizona and Manheim Tucson where he received the 2019 President's Award for “Auction of the Year.” Most recently, he served as general manager of Manheim Portland. Duplanty holds a bachelor's degree in business administration and management from Arizona State University. He succeeds Victor Ferlaino who retired from the company following a 25-year career that included general manager positions at Manheim Cincinnati, Manheim St. Louis and, most recently, Manheim Kansas City. 
  • Michelle McQueen has been promoted to general manager of Manheim Portland to fill the leadership position previously held by Duplanty. McQueen joined the Manheim family in 2005 and rose to positions of increasing responsibility that include dealer services manager, front office manager and mechanic shop manager. Most recently, she served as assistant general manager at Manheim Phoenix. She holds a bachelor’s degree in organizational leadership from the University of Arizona Global Campus.

About Manheim
Manheim® is the nation’s leading provider of end-to-end wholesale vehicle solutions that help dealer and commercial clients increase profits and efficiencies in their used vehicle operations. Through its physical, mobile and digital sales network, Manheim offers services for decisioning, buying and selling, floor planning, logistics, assurance and reconditioning. Operating the largest vehicle wholesale marketplace, Manheim provides clients with choices to connect and transact business how and when they want. With nearly 8 million used vehicles offered annually, Manheim team members help the company facilitate transactions representing nearly $80 billion in value. Headquartered in Atlanta, Manheim North America is a Cox Automotive™ brand. For more information, visit

About Cox Automotive
Cox Automotive is the world’s largest automotive services and technology provider. Fueled by the largest breadth of first-party data fed by 2.3 billion online interactions a year, Cox Automotive tailors leading solutions for car shoppers, automakers, dealers, retailers, lenders and fleet owners. The company has 25,000+ employees on five continents and a family of trusted brands that includes Autotrader®, Dealertrack®, Kelley Blue Book®, Manheim®, NextGear Capital™ and vAuto®. Cox Automotive is a subsidiary of Cox Enterprises Inc., a privately-owned, Atlanta-based company with $21 billion in revenue. Visit or connect via @CoxAutomotive on Twitter, CoxAutoInc on Facebook or Cox-Automotive-Inc on LinkedIn.