Thank You guys!
This Turbo was delivered with tinted windows and five speed trans.
I was told by the seller that previous owner had mechanics overhauled and tuned by a famous italian BMW tuner of the 70's, Romeo Ferraris. Unfortunately this previous owner, who owned a big collection of classics, went bankrupt and all papers were lost/distructed. That is also why the car has now recent italian plates (awful) after re-registration
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First registration plates (black and square) were "Torino".