Motor damage to capital

Hello together, only about 4 weeks ago I had bought a private E65 750i (Bj 2006, 270 kW, 160,000 km). The vehicle made an all-round impression and was BMW check booklet-kept. Yesterday when driving on the highway then the GAU. At speed 240 suddenly a dense white smoke flag… roll out on the stand lane… engine stands and the starter does not spin the engine anymore… about 1.5 l engine oil under the vehicle. Today I had the car on the stage. The engine reads The most likely diagnosis is probably piston-eater -> Conrod broken -> Engine block break through. Unfortunately, no direct view of the hole in the block is possible. I guess it is at the level of cylinder 2 and thus it is covered by the engine bearing. I would just like to know if I am a single fate here or if such damage occurs with this engine (N62B48). If anyone has similar problems, I would like to know if there is a problem. or knows someone who has been in the same way? Thank you very much in advance.