both the r32 and the gti seem in the same league as far as i'm aware. have you seen the latest evo? once again, the gti is being rated amongst massively high power 4x4/RWD cars including a skyline, m5, exige etc. it seems they can't get enough of it.
id say flog the polo, get the gti and see which one you prefer! you never know, the wife may love it 
Does it make financial sense to have 2 very nice cars on the drive? For me it does not, so my car will go to be replaced by the MKV GTI (week 18). We thought about selling the wifes Ka and keeping my MKIV but financially it does not make any sense. So one nice for me and joint journeys and a shed for the wifes runabout, is the way we are going.
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