Purchase advice

Hello guys, can you please tell me which of these three you would recommend from the price/performance?http://suche.mobile.de/…/161708923.html?…http://suche.mobile.de/…/154445749.html?…http://suche.mobile.de/…/159169453.html?… The last one is very well maintained and I would possibly get it for 6200€, what do you think? Should be used as a student car and mainly city. Thanks already.