engine stalled out in flash flood. towed to auto shop specializing in German cars, but not BMW auth. Said they could rebuild engine, est $10000. Have had car 2 mos, now want more time and parts. Called auth dealer, they have not seen car, but say cannot "rebuild", should replace engine. ?????

i frequently change spark plugs and coils at least 1 every other month.

Some of the newer BMW's have newer digital instrument clusters, so would it be possible to get one of the newer ones and replace it with the 2011 5 series