Fiat 500 newcomer is insecure ?!

Hello dear forum community, my wife has chosen the FIAT 500 after a long search. He can cost up to 6,000 €. Of course we first Googled and searched forums but this article has made us unsure:Fiat 500: Used car test — 31.01.2015 Now we are about to write off the Fiat… or is there still hope? We have no idea which year of construction with which engine is most reliable. Generally we know almost nothing, only that the small car is well off Are there certain models? Models that can be excluded? What do we have to pay attention to? Or rather a Twingo?