As everyone is jumping on the turbo-4 bandwagon, so are American manufacturers. But given (1) their horrible reliability in the eighties and (2) that they are essentially new at it after such a long absence in the US from the turbo scene, do you trust their reliability? These engine are going into family sedans whose typical owners won't use synth and who will never cool down when necessary. If Ford/GM mess up even a little with shielding oil lines, proper cooling, etc., could we end up with a mess?
Or are the European branches of Ford/GM experienced enough in turbos that they won't mess up the US models?