2003 Boxster S with NEW engine

[cnavarro]

It was likely an example of an engine where the updated rear main seal wouldn't have fixed the problem of a drooping crankshaft carrier. The factory go/no go gauge for seal replacement versus engine replacement would have been used to determine that the engine was not repairable. The replacement engine likely is the latest generation, with the larger IMS bearing. I wouldn't have any concern about buying this car from what you have posted.