Production of the Twin Turbo Diesel seems to have been delayed. Production was due to start in October but as yet dealers in the UK have not been given build slots before January. There is no official word from BMW GB yet on the delay but it's rumoured there is a shortage of engines available which is not entirely surprising as this has happened with diesel engined cars before. Heard a rumour that the regular 3.0d is being delayed too but not by as much.