Question about Opel Vectra's

[taygunho]

I google'd but most of result is german and I don't understand.I know vectra had v6 engine in vectra b but how much hp it got?. If I am not wrong it has 155 and 170 hp version 2.5 liter v6 but one my friend said it has 2.6 liter v6 180hp version.Is it true?If it is ture when and in wich gen. vectra had it.