SRT has a little bit of unfinished engineering to work on with the current generation Viper. Hopefully this will be addressed during the 2015/16 refresh. The problem is not the power, nor is it the engine. The 8.4L V10 is an absolutely fantastic engine with monstrous amounts of torque all throughout the powerband. There is nothing quite like a naturally aspirated engine putting out numbers as big as that 8.4L does. The problem with the Viper is suspension tuning. GM has this brilliant magnetic suspension that can make the corvette ride like luxury car, or it can ride like a rock, and everything in between. This suspension also adjusts thousands of times a second to be so accurate and on point. The magnetic suspension is so great that Ferrari licenses it from GM to use in their cars.
The key thing with that suspension is that it allows you to build one model of a car, and it will perform great in all driving styles. The Viper has multiple variations, and they're all intended to be used in different ways. The T/A is basically a street legal track car. It's amazing if you're driving it on a smooth road course, but when you drive it on the street, it's going to ride like a race car. Not exactly what someone paying $120,000 for a car is going to want. Then there's the base SRT Viper and the GTS which are more track friendly street cars. They don't ride nearly as harsh as the T/A does, however they tend to give off this terrifying feeling that you are going to lose control of the car, even though it is very well planted. They're both still incredible on the track, but not as good as the Corvette or the Viper T/A. There are not multiple variations of the corvette ZR1 depending on where you plan to drive it. The ZR1 will adjust for the conditions of the street right after pulling off the track, and it will be a smooth ride home. In a Viper T/A, you may rattle a few teeth out on your way home.
SRT needs to figure out a suspension system that can compete with GM's. Until they can do that, magazines are going to continue to praise the Corvette. This is the largest issue with the Viper. There are other minor issues in build quality as well, but we won't get into that just yet.