Well, first of all pls excuse my bad english in terms of technical language, but what I read today causes me to believe in some kind of spoiler: The German magazine "sport auto" had an extensive test with the Z8 vs. Chrysler Viper GTS (which is their reference car). Obviously, the results of the Z8 has been excellent (however, not completely as good as the Viper regarding sportyness)... BUT the by far greatest disadvantage of the Z8 is the buoyancy force (?) of the rear axle at 200 km/h which is 668 Newton (!!) whilst the Viper has an output force (?) of 258 Newton. That means, in fact, that the car gets remarkable instable at higher speeds. I would definetely expect some improvements on that very soon.