The present invention relates to a vehicle comprising a metal structure assembly with an improved corrosion resistance. The metal assembly comprises a first and a second metal member (11, 12), the first metal member (11) comprises a steel sheet having a first surface (20), and the first surface (20) is coated with at least one alloy. The second metal member (12) is an alumina member having a first surface (23). Furthermore is the first surface (20) of the first metal member (11) is attached to the first surface (23) of the second metal member (12) at at least a first attachment area (30). The at least one alloy comprises Mg. The metal assembly according to the present invention is proved to be very corrosion resistant but also very resistant towards local corrosion attacks in the form of pits.