I ve an Old Car Opel REKORD 1963 is it true that company takes the old models and changes it with new one?

Answer 1

Obviously the best way to find out is to e-mail them and ask.
To get the right address, consult with your local Opel dealer. In some countries Opel was never sold. In that case get in touch with General Motors, the mother company.
Good luck!

Answer 2

You can always trade (part exchange) it for a new one. But Opel doesn't just swap old cars for new ones.