Wise joined Manheim in June as group sales director. Before that, he was responsible for European sales at fast-fit company Kwik-Fit.
A statement issued by Manheim said: ‘His decision was taken for personal reasons and the company does not consider that it will have any impact on its business. This was a newly created role and the company still has a full complement of senior executives and sales directors.’
It added that until a replacement is found, Manheim chief executive John Bailey will caretake the role.
Wise was unavailable for comment.