996 engine problems

I have a 2003 996 and have had to have the engine replaced twice in the past year. I want out of the car but, Porsche is only willing to offer a voucher for purchase of a similar car at dealer pricing which is not satisfactory for me. Has anyone else had this problem? Any suggestions as to how to deal with Porsche on this matter?

if you call porsche corporate they will be able to help you. the dealer really cant do much as its not lemon law until 1 more engine.