Buy Malibu from 03/2014???

Hello, I drive a 3 year old Astra j with 165Ps, 2.0l diesel. Now the box has 89tkm on it… well, and I have here also some bird shooting… at the house parking place… Last year also vandalism damage on the passenger side… My car was in the Np at almost 33t€ and bought it 06/2012(ez at the Opel dealer ten month before), for 23.5t€… Well now I have thought about giving it maybe for 12t€ in payment and buying a Malibu for 17t€…. What do you think about it? I the engine at the 161 Ps Malibu then also from Kaiserslautern, or comparable? Engine capacity is the same… but how does the rest of the technology eat…. if then I would like to drive on it already so 150-200tkm… Depending on Malibu he would have now so 15 to 30tkm…. Well my Astra eats also not perfect… some stone hits on the hood,,, that harm right (stone throw)… chrome strips not so perfect…. Sometimes clacker sounds in the arma tour board…. suspension pretty hard….