V50 2.4i Bj 05 Buy – pro/contra?

Hello together, now I’m looking for a V40 somehow stuck somewhere else, now you have the salad 😛 So this – have this : http://www.autoscout24.de/Details.aspx?… V50 here discovered, hears and leaves itself quite well. At least I think that as a Volvo newcomer. what I’m still wondering is what the “i” behind 2.4 has to mean. Is somehow unsolicited, can someone explain that to me? What else to say? What to look for? hlappe 300 km to Oberhausen – of course you try to exclude the big risk. Thanks already