I'm getting my figures mate from the vast majority of figures given over the internet, so a trust worthy source if ever I saw one,
The GTV V6 has 218BHP whereas the 156 V6 came with 192BHP, plus isn't the GTV supposedly HEAVIER than the 156?
Not sure if that's fact though or what.
Either way, with the GTV only having an extra 25BHP I can't imagine it 'mincing' the 156 by any means. I assume thought that further on through the speeds it would begin to take an obvious lead.
I'm not knocking the GTV though, great looking car and fast enough for me. I like them!
Well I'm getting anal about this so, I'm going to lay it all down for you now.
Comparing the earliest produced models, this is how they stack up:
1997 Alfa 156 2.5 V6 6-speed Manual: 1320kg, 190PS (187bhp), 141.7bhp/tonne. Quarter mile = 15.8 seconds. Standing KM = 27.8 seconds
1997 GTV 3.0 V6 5-speed manual: 1415kg, 223PS (220bhp), 155.5bhp/tonne. Quarter mile = 15.1 seconds. Standing KM = 26.8 seconds
So the GTV in terms of power-to-weight is still quite a bit ahead regardless of the fact that it is heavier, but the 156 is going to almost keep up off the line in a drag race thanks to its 6-speed gearbox. I dare say the GTV is going to handle a damn sight better though, especially through the twisties, where it will gobble the 156 up for breakfast. And it will brake better as well with those Brembo 305s.
you could probably buy and modify a 156 V6 to the pace/handling of a GTV for the price you could buy a bog standard 3.0 GTV for, so at the end of the day performance/£ being equal, it comes down to looks vs functionality.