I dislike the bodykit, firstly on all the metallic cars I've seen it's a different colour to the rest of the car, it fits badly and from the back it makes the rest of the car look very narrow. IMO it may look more balanced with the big wing on the back, at least then you could argue the wing was there for a reason, on other 156s it's a bit of a joke.
I've done about 150 miles in GTAs now and they don't press my buttons somehow. I find the steering to dead and light, reminds me of my Coupe Turbo. I also think it's v.expensive although you can get them in Italy (RHD) for £21K approx - (you'll have to find where yourselves!)
Overall I don't think it feels anything like as nice as , dare I say it, a Subaru Impreza or an E36 M3 Evo.
I'd have a 3.0 GTV 24V any day, not to mention a 166...