I plan on trading in (or selling) my copperhead for an '08. Too much of an improvement to ignore. Yes, we keep losing money when we buy brand new cars and sell them within a couple of years so I would only do it if you can afford those losses.
I'm not sure how long the viper line will continue and I'm not sure the HP will continue to increase. How much more than 600 HP can be safely sold to the public? I know there's the Veyron and the Saleen twin turbo (at many times the cost of the viper) but most supercars don't go much past that mark at any price.
With the move toward alternative fuels and a focus on fuel consumption, I wouldn't be surprised if this turns out to be the peak (stock) HP for the viper.
Not so sure about that. Today base horsepower in even Mazda and Nissan grocery-getters is up past what a Corvette had not that many years back. It sees every time I see a car commercial there touting hp ratings for sport sedans of around 300HP or more.
So 600HP isn't all that outlandish, especially when the Z06 has 500+ and only costs about $70K, which in terms of car pricing is somewhat expensive but not really. Tons of Mercedes cars sport power ratings up around 400+ and as soon as you add the AMG badge/version you're looking at more than 500HP.
And these aren't sports cars for fanatics, they're executive daily driver cars for lawyers and executives, etc. and people these days buying
any car over $60,000 are accustomed to seeing 400-500HP. And all these cars are fuel efficient (as much as they can be) and run fairly clean emissions-wise.
So it is by no means extreme in my mind that what is virtually a race car bred design like the Viper comes stock with 600HP. That new 'Blue Devil' Corvette is going to be produced and they're talking about 750HP for that thing.
Just the fact that so many folks have blown Vipers with 700+ HP and drive them around just fine on the street proves that these horsepower numbers, in a modern fuel injected computer controlled cars, can just as easily go get the groceries as they can run hi 10's at the drag strip!
In the old days if you wanted 600HP+ you were talking about headers and a wild cam, running leaded gas, with no catalytic converters too! Not anymore!