I'd go for the GT-R. It's a more impressive car to me than the ZR1. The ZR1 is a better car than the Z06, yes, but the improvements are not astonishing. Better oiling for the motor, supercharger, better gearset, CF body panels, magnetic suspension, etc. Okay great, so basically it's an improved version of the Z06. The ring time is definitely impressive, but another 600hp/3400lbs car also achieved virtually same performance....the new Viper ACR, which uses basically same formula....manually rowed, high HP, RWD, etc. I honestly think with the proper mods a C6 Z06 can easily come within reach of ZR1/ACR performance since these can be thought of as the 'same' cars. The GT-R though is something unique and new from Nissan. It's not the best looking (neither is the ZR1 imo, especially with that utterly tacky/ricey looking window on the hood) but if you brows on GT-R forums alot of the public think its some kind of hot exotic (including chicks, hehe). Not to mention it's cheaper, and has 2 extra seats for those groceries and kids. I'd get the new Viper ACR over the ZR1, anyway.
Opinions are what make the world 'round my friend.
While I would agree with you that the ZR1 & Z06 are similar cars, they would be completely different animals to drive. 133 extra horsepowers are a lot. There is a reason magazine drivers consistently drive the GTR around tracks than the ZR1, it's just more than they can handle. The Z06 is a lot more managable with less power. Although, the new PTM system sure helps.
I would also not buy a car to lug around a full load of groceries, kids, etc. If I had a car like that, it would be for my personal enjoyment and irresponsible driving (if kids were present that is). If you have a car that does it all, and you use it for all of that, it becomes less special to take the car out (again IMO). A nice daily driver is one thing, but I would love to have a special car in the garage waiting for me whenever I want the maximum pleasure in every aspect possible. Having to drive a different car to drive every day makes for the times you take the nice car out that much better.
I will agree that in terms of brand portfolio's, the GTR is definitely unique. However, I get a smile when I see a Z06 or ZR1 on the road....or this commercial on tv
http://www.youtube.com/watch?v=FJW9Up0nJT4&feature=related
IMO, this is the bottom line (for this argument anyways):
-If you go on
a lot of track days, and want to be competitive, take the GTR.
-If you use the car mostly for the street, Z06/ZR1 is the better choice (while track days would be more adrenaline filled IMO).
In the end, it all comes down to what you prefer, and I can see why someone would choose a GTR. For me, it is way to ugly and I would never use it for what it was made. 1,320 feet of bliss or some nice street runs will more than suffice in my book. And if I really wanted a big chunky car to drive around, I'd do it right with a CTS-V.