Originally Posted By: rslifkin
Now if they could put the AWD Hellcat setup in something that wasn't north of 5000 lbs... Or maybe in something that didn't have a high center of gravity without much ground clearance to make up for it...
The problem is, an engine like the Hellcat needs a fair amount of "infrastructure" to work as well as it does (aftercoolers, coolant loops for the aftercoolers, electric coolant pumps, coolant-to-air heat exchangers, oil coolers) and fitting all that in a small chassis is hard. GM did it with the Z06, and immediately got lambasted for the fact that it can't sustain its full output for as long as the Hellcat can (and recently got roasted in another review because its not nearly as well balanced as a Viper ACR). The Hellcat had a "20 minutes on a road course without power reduction" goal, and they met it. But they couldn't have if they'd tried to put that engine in a Viper... which is why the Viper still has its normally-aspirated V10 with a slightly lower horsepower rating but enabling a much lighter overall package.
Originally Posted By: rslifkin
I still don't quite see the point of building a super high performance lowered SUV. It can't much in the way of SUV things anymore, and it's handicapped when it comes to doing the car things they're trying to make it do.
At first blush, I would tend to agree. But the segment is pretty hot, between the Cayenne S and S turbo, JGC SRT-8 and now SRT Hellcat, and the BMW X5 M. Nevermind the 510-horsepower Range Rover. A co-worker has a Cayenne S, and while he doesn't go rock-crawling with it he does go up unimproved trails to get to his West Texas land from time to time. Its still capable of that level of SUV-ness. And its just fun to drive. Heck, a regular 5.7 Grand Cherokee is a really nice, fun, powerful car- even if you don't use the suspension travel for rock crawling, it is also very good at soaking up interstate expansion joints and potholes. I think today this class sorta appeals to the buyer who would have gone for a 300 Letter Series in the 50s: Roomy, smooth, highly-optioned, and comfortable are important, but a lot of refined power on tap is nice too.