But he added that he considered such an exit unlikely.The new Qashqai will be built at Nissan’s Sunderland site, which employs 6,500 workers.
Prime Minister David Cameron has promised a vote on EU membership in 2017 if the Conservatives win the next general election in 2015.
Nissan is the biggest carmaker in Britain and recently announced plans to expand its factory in Sunderland. If it does so it says it will be able to produce more than 550,000, and support more than 6,000 jobs.
(Edited by James Titcomb)