The 6.1 liter V8 was restricted to SRT cars; the 6.4 was used only by SRT as well, until Ram got a retuned version, with much less power but greater durability under towing and hauling conditions, this year. For 2015, Dodge will get a full-power, 470-horsepower 6.4 liter engine under the hood of the Dodge Challenger Scat Pack models.

The move is likely part of an effort to drop the price of the “392” Challenger for performance enthusiasts who do not necessarily want all the frills, while maintaining the exclusivity and margins of the SRT brand. Chrysler has been trying to position SRT as a competitor to BMW and other higher-cost brands, appealing to customers who would not consider a mass-market brand such as Dodge.

The Dodge Challenger Scat Pack comes with a beefed-up suspension to handle the power of the big Hemi, along with “Performance Pages” (performance timers, extra gauges, and options for Launch Control and such); four-piston Brembo calipers for all four wheels; 20-inch wheels with performance tires; and a half-inch lower ride height. For more, see the 2015 Dodge Challenger page.