A few questions about Calibra…

Hello everybody, I’m usually on the road in the BMW forum, but it could be that I’m going by here more often in the future… I’m looking for a new car for me…at the moment I’m still fluctuating between a BMW 320i (Coupe) and the Calibra. Now to my questions about the Calis: Which motorization is recommended? I personally tend to the 150hp version – is that advisable? How about the consumption between the 150hp and the 170hp engine? I think the engine falls out of the selection…because my kumpfel drives 115hp Vectra A (is probably the same engine), and he is already too lame for the long run…. Is it really still recommended to buy models around the year ’93, or do you have to drive them to the workshop often? How does it look in general in the maintenance of the Calis? And I also have no idea that the box rusts away under my back… The prices for nen Cali are in my opinion so zieml I’m in the basement, or am I wrong?? Thank you for the answers!