The C6 Z06 was slower? It ran ~7'43", so the V-Spec II Nur ran ~7'39"? That's kind of a stretch imho. The new 997 GT3 runs that, and not only does it weigh a good bit less than an R34, but with ~415hp, it's got an advantage in grunt, too.From the numbers I've found the new Z06 did it four seconds slower then the V Spec II Nur. But I haven't found anything official.
I also figure a better handling/more compliant suspension will give the GT-R an advantage in handling, as well as driver confidence.something else to note, as i reiterate this schtick here: if Lotus is also developing, at least heavily influencing, the chassis/monocoque (as this is part of the suspension system, really), the GTR will be feather-light, relatively speaking. perhaps lighter than the 350Z. this should take care of the Z06.
You make it sound like the Z06 is the benchmark to which other cars are being judged. I don't know what sources you guys are using, but all this sounds moot when it boils down to technology and the driver. Does a few seconds really matter to the consumer who buys these cars? Probably not. I think I'd be happy to own the Z tune or GT-R no matter what.The GT-R's ultimate performance will probably be more easily accessible to a wider range of people. In the hands of a seasoned pro or the development driver, the GT-R might be able to topple the Z06.