No, more likely to learn here than the Claas website.
Until August 1st.
No, MTU another german engine manufacturer. But they have a history with Daimler Benz. Also with Detroit Diesel Corporation (DDC) in former Daimler-Chrysler times.
They do e.g. the diesel engine of the Leopard II tank -german main battle tank.
But I doubt they will add this 1500hp engine