With 425-horsepower 6.1-liter Hemi V8, replaced the pent star’s new 6.4-liter Hemi V8 engine that first appeared in the new Challenger SRT8 392. The new V8 produces 465 horsepower and 465 pound-feet of torque, up 40 ponies and 45 lb-ft versus the outgoing engine. What's more, that upgraded output is also more usable for 2012, as Chrysler tells us we can expect an additional 80 lb-ft of torque at 2,900 rpm, which translates into more thrust from a standstill. How much? Official estimates are 0-60 "in the high four-second range," and a quarter-mile time of fewer than 13 seconds. The transmission of choice will be the carryover five-speed automatic, though paddle shifters will join the automatic to give drivers a couple options for gear selection.
Install 14.2-inch front rotors and 13.8-inch discs out back, while four-piston Brembo calipers supply the bite. Chrysler's tape measure reveals that these high-end brakes manage to bring this undoubtedly heavy sedan from 60 mph to a stand-still in less than 120 feet. Chrysler insists that this SRT8 actually boasts a 25-percent increase in efficiency. One reason for the big improvement is a new active valve exhaust system, which allows the big V8 to drop down to four-cylinder mode over a much wider RPM range than before.
Inside, the 300 SRT8 features unique leather seating surfaces; a unique, heated steering wheel; and plenty of SRT budging to go around. Also present are the expectant carbon fiber interior trim pieces adorning the dash and doors. Functional upgrades include an Electronic Vehicle Information Center that can measure 0-60, eighth mile and quarter mile times as well as braking distances. Controls for the EVIC are accessed from the steering wheel, and all of the information is available on the large 8.4-inch LCD screen, which can also display information like steering and yaw angle, horsepower and torque outputs.
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