Back to weight watching, here's an outtake from a Car & Driver teaser for the new Demonic specimen coming from Dodge. The bug has bitten the engineers hard.
Welcome to the Terror dome.

"To shed some unholy mass from a Demon, Dodge ditches everything it can, starting with all the seats except one for the driver. Dumping the rear and passenger seats sheds 113 pounds, 58 of that for the passenger throne alone. (A betting man could safely wager that the seats, and their respective belts, could be available as dealer-installed options.) Ditching the trunk trim saves another 20 pounds, and 18 pounds of sound-deadening material go away, too. As we speculated, the speakers are all gone except for two small ones in the doors for the warning chimes; that and a simplified wiring harness pares another 24 pounds.

Further mass reductions compared with Hellcat-spec Challengers include ditching the parking sensors (two pounds), replacing the power tilting and telescoping steering column with a manual version (four pounds), 18-inch wheels in place of 20-inchers (16 pounds), hollow anti-roll bars (19 pounds), and the surprising choice of four-piston front brake calipers grabbing 14.2-inch rotors to supplant the Hellcat’s 16-pounds-heavier pair of six-piston grabbers and 15.4-inch rotors. (Maybe this isn’t intended as a road-course machine?)"