Reliability and information about Alero

Hello, when searching for a successor for our Kia… (Limo,EZ from 2000, power from 140 hp, 4-6t Euro, under 100tkm, possibly 6 cylinders and may not be standing at every corner!) …I am beside some others (among others: XG30, Sonata, Primera, Galant, Magentis) also on the Alero. How reliable is the car? Is the V6 worth it? Is the Autmatik transmission durable? Consumption, 2.4 vs. 3.4 ? Do I get wear parts without any problems? Braid or chain? Can you still use your own hand ( How big is the trunk? Do you have other matching models in putto? Thanks and ciao Chris