Are we talking about the 'box' on the left of the picture ( the front of the car )?
If so, I would be 99.999999999% certain this is NOT the turbo, but the intercooler.
Saying that, what's the engine size / from ? It's obviously petrol.
its actually a 2.0 405 T16 engine with a cast iron block (1998cc not 1905cc).
they are extremely rare and were never sold in the UK.
that photograph shows Brams CTI 205 fitted with the T16 engine in Holland.