DUESSELDORF, May 3 (Reuters) - Rheinmetall CEO Armin Papperberger believes a large part of the order for new armoured transport vehicles for Germany's Bundeswehr armed forces will go to Finnish defence group Patria, he said on Thursday evening.

"The budget is to be between 1 and 1.5 billion euros. We at Rheinmetall cannot build 800 vehicles for this money. That is not possible," Papperberger told reporters at the WPV association.

(Reporting by Matthias Inverardi, Writing by Rachel More; editing by Matthias Williams)