I have daewoo leganza, and (by 2 users)

I had same problem with my car couple years back and it was a vauxhall engine used to replace it. Although I still have my car, I have had several problems after replacing engine, like cylinder head going straight after it. Make sure if you are replacing it, it is a decent mechanic that checks everything and torques it up periodically. Like honky29 says it will be expensive and may not be worth it.