Have had 34 gtrs as dailys since march '08. They are comfortable enough for a daily, just set your coil overs to soft and keep a single plate clutch. You can get about 300hp at all 4 with just boost and exhaust, which leaves you with decent power and fuel economy. Once you upgrade turbos, injectors, computer, it starts costing more to run. I have a triple plate clutch which become a pain in the arse in traffic and have heard a twin can be a bit much too in a daily. When buying a 34 gtr, look for one that has the dear stuff allready on it, like volk rays, coil overs , turbos and computer already upgraded. Maybe import your own and save some cash.