Sarah-Jane Curtis has moved into a non-executive director role after six years at Bicester Motion as chief operating officer.
Sarah-Jane will remain as an active member of the team, running special projects for the company on one day a week.
Daniel Geoghegan said: “SJ’s contribution to the growth of Bicester Motion has been incomparable and it has been a privilege to work alongside her for the past six years.
“I am delighted we have been able to retain her expertise, as well as the strong relationships and goodwill that she has built up. I look forward to her continued support, strength and knowledge as we continue into the future.”