The Ram TRX is the first publicly-shown vehicle that hooks up the Hellcat engine to a four wheel drive system. It dropped down to 575 hp, but that’s a hundred horsepower more than the 6.4 Hemi and even further above the Ford Raptor.
A Hellcat-powered Jeep Grand Cherokee Trackhawk has been rumored since before the Hellcat was even shown to the public. Insiders said that FCA leaders were concerned the engine be too loud or uncouth for the refined Grand Cherokee, and that the cost would be too high.
The supercharged Hemi turned out to be relatively quiet, and easily controllable — surprisingly so, in fact. It might be hard to whip it around corners at speed in the big Jeep, but at least it’ll be possible to drive it gently.
There are still many questions, but sources have told Allpar that there are Grand Cherokee Hellcat mules running around, and that the Hellcat would be detuned for the purpose. Whether they turn out to be “commercial” — practical for commercial sale — is still up in the air. See the Ram 1500 Rebel TRX.
Read more at: http://www.allpar.com/news/2016/10/does-the-trx-presage-a-jeep-trackhawk-hellcat-34120