Well, it sounds to me that a simpler version of the Turbotrain might have been better from an operational point of view and would have appealed more to low-end types like me. I would be happy just to have the rear power car headlight be directional. The strobe, etc. I could live without. I would have liked the cars to be a little further apart if that would have made the connections more reliable and the required radius not so demanding.
In regard to FalconService's suggestion, yes, passengers that move around, especially to the facilities, which should have flushing toilets!