The engine was brand new - not a rebuild - purchased at Wagner Mercedes here in Mass. Steve's Automotive Imports installed it. I had anticipated a replacement of the engine block. What I got instead was a complete, new engine. Since I paid dealer cost, I didn't complain (at the time). The new engine has all of 15,000 miles on it and of course burns no oil. Transmission is automatic. It's a pity that the car is rotting away, because it still looks good and mechanically is better than many new cars. Oh, well. If you want to talk further, email me at email@example.com.