Brian the C425 will do 245kts all day long
Bull****e. You are the one out to impress us with your credentals and knowledge but continually refuse to answer questions put to you. Don't know what the Vmo is? I can provide the answer if you've forgotten, and sorry Evonne doesn't carry manuals around for aircraft she flew in the long distant past.
Brain..your a liar
You might want to get yourself lawyered up. Papers may be served, and don't for one minute think that you are annonymous on here.