He will report to GM Europe vice-president and Saab chairman and chief executive officer Peter Augustsson.
Peter succeeds Werner Jung who has become controller at Adam Opel and is moving back to Germany.
The company said that Jung's additional role 'will be a pan-European functional responsibility for all finance activities associated with cost benchmarking and teardown activity.'
Commenting on Peter's new role, Augustsson said: 'We are excited to have Joe Peter joining the Saab team. He brings a wealth of experience which will help us to meet our objectives of market growth and sustainable profitability.'