Stock for stock, except for the subjective issue of body style and the issue of low end throttle response, the Gen III is far superior to the Gen II in performance at the strip, on the street or at a road course. Stock for stock, the drivetrain of the Gen IV produces superior performance to the drivetrain of the Gen III.
As for a Gen V, if there ever is one, it is my hope that it will represent an evolution of the Viper that is consistent with it being a streetable race car as opposed to a raceable street car which requires a skilled, thinking driver to drive it at the edge of its performance capabilities. I would like to see it weigh in at no more than 3200 pounds. I would like to see it offered in street, road course and drag strip versions. I would like to see an extensive list of options offered. And, it's design should have the same emotional impact illicited by the red GTS coupe running at speed on the roads in Hawaii. Remember that AD given to all of us on a DVD?
After the Hawaii AD, the marketing for the Viper crashed and burned. Chrysler and the Dodge division, for some idiotic reason I still do not understand - perhaps it involved some corporate infighting, abandoned the proper marketing of the Viper and expected its sales to continue unabated. Then they allowed such marketing foolishness as employee pricing for Walmart employees. At the time, I thought the person that made that decision was a deep cover mole for GM since the decsiion was so absurd. In my opinion the demise of the Viper was caused by an incompetent marketing effort which was followed by an absurd price incentive plan. Both worked together to hurt the image of the car, distort the expectations of buyers and sap what had been normal demand. Hopefully all the people that made those decisions have been fired. If they have not, the same mistakes will be made again. Cancer has a way of recurring.