Actually the z06 and the viper get better hwy mpg versus the gtr....besides in order to increase hp it is pretty simple either increase displacement or force induction... The supercharger design of the zr1 is very efficient..The four-lobe design and extra rotation increases thermal efficiency and has nearly the same power efficiency as a turbocharger...

The gtr in the real world has fallen short of expectations both at one lap of america and this months car and driver

Early on reports are discovering the strengths and weakness of this Nissan.

At the one lap of America it came in 11th behind stock z06s and viper

On tight courses it pushes like a pig. On wide high speed sweepers it really hustles along.

The launch mode was useless at the drag strip, as it would not allow the car to creep into the lights to stage, so real world experience had it bogging badly off the marks. The lack of a manual transmission kept the driver from really controlling the car.

The driver of the one lap did mention that it cruised very comfortably between events, and had a pretty large trunk... anybody see a trend here.

I will be curious to see how easily you will be able to mod a GTR. It has a ton of electronics on it (literally… LOL). With a Viper you are almost limitless on how much power you can get out of one... I think the GTR will be pretty much pegged once it rolls off the line, or it will cost a fortune to increase the power… but I guess we will have to see.

zr1 wins by a looooooooong shot in my book

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