For 2012, the Challenger SRT8's 392-cubic inch HEMI® V-8 delivers 470 horsepower and 470 lb.-ft. of torque. The torque band is extremely flat allowing for strong standing starts and improved straight-line performance throughout the rpm range. An advanced active intake manifold along with high-lift cam with phasing provides maximum low-end torque and high-end power while still delivering up to 23 miles per gallon on the highway with the standard manual transmission. Performance-tuned engine mounts improve idle stability and ride control at all speeds.
The impressive mileage is a result of Dodge's Standard Fuel Saver Technology in automatic transmission equipped models that allows the engine to operate economically on four cylinders or use the power of all eight cylinders when needed. The EPA fuel economy miles per gallon (mpg) (City/Hwy) ratings for the 2012 Dodge Challenger SRT8 392 are 14/22 for automatic transmission models and 14/23 for manual-transmission models.
The 2012 Dodge Challenger SRT8 392 features a standard Tremec TR-6060 six-speed manual transmission and a dual-disc high performance clutch – a proven performer that was first offered on the 2008 Dodge Viper SRT10®. The optional five-speed automatic transmission features new, standard steering wheel mounted paddle shifters that join the center console mounted Auto Stick. Both methods give the driver the ability to manually select specific gears on the transmission.
In “Drive,” the transmission controller will automatically shift the vehicle. The aggressiveness of the shifting is defined by the mode chosen - either “Normal” or “Sport.” Fully adaptive electronic control of all shifting makes the powertrain more responsive while minimizing harshness. In “Manual,” the shift method is defined by the driver choosing to use either paddle shift or Auto Stick. The “Sport” mode adds a hold function to the calibration in all gears, allowing the driver full control of the shifting schedule. 
New for 2012 is the adaptive damping suspension (ADS) system which is tuned specifically for the Dodge Challenger SRT8 392. In “Auto” mode, a wide range of on-road and driver inputs – such as vehicle speed, steering angle, steering speed, brake torque, throttle position and lateral/vertical accelerations – automatically tune the suspension for specific conditions. In “Sport” mode, the damping system rebound and compression is locked to the higher damping rate. Drivers can easily choose between settings to quickly change the shock damping and harshness characteristics from “Auto” for everyday commuting to “Sport” for more spirited driving situations.
The SRT rides a half-inch lower than other Challenger models and rides on either the standard five-spoke, 20 x 9-inch fully forged aluminum wheels or available seven-spoke, 20 x 9-inch lightweight forged aluminum wheels with satin black painted pockets. Standard Goodyear RSA All-Season tires or available Goodyear F1 Supercar Three-Season complement the performance design cues and improve performance and handling.
Stopping all this performance is the standard SRT performance brake package produces a stopping power of 60 to 0 mph in just 117 feet from 14.2 inch (front) and 13.8 inch (rear) vented/slotted rotors with four-piston Brembo fixed calipers painted red. The three-mode electronic stability control system with knockback mitigation also includes four-wheel ABS, all-speed traction control, electronic brake-force distribution, Brake Assist and Hill-start Assist (HSA).
From the curb the 2012 edition of the STR8 remains largely unchanged. There is a large front splitter, integrated front fender spats, body color rear decklid spoiler and the front fascia chin spoiler which is accented in black for a more aggressive look. The front grille features a bright grille surround.
For 2012, available exterior colors include: Bright Silver, Bright White, Header Orange, Pitch Black, Redline Red and Tungsten Metallic. Dual, full-body stripes are available in black, grey metallic, red and silver metallic. There are also “392 HEMI” badges flanking both fenders and from the rear there are 4-inch rectangular exhaust tips.
Inside Dodge is touting a race-inspired interior with new, leather wrapped, heated, SRT-exclusive steering wheel that features a satin chrome rim section with a flattened bottom surface that showcases the SRT logo. The optional automatic transmission includes paddle shift controls on both sides of the new contoured palm rests. All audio and Electronic Vehicle Information Center (EVIC) controls are accessible from the horizontal spokes on the steering wheel.
The trapezoidal instrument panel features a four-bomb gauge cluster with chromed accent rings and unique SRT graphics. Inside the cluster, the SRT-exclusive Electronic Vehicle Information Center (EVIC) with performance pages provides the driver with trip information, multimedia information from the Media Center radio, along with instant feedback on 0-60 mph time, 60-0 mph braking, G-forces, one-eighth mile and quarter-mile times.
New for 2012, the Dodge Challenger SRT8 features an available 900-watt, 18-speaker premium SRT performance audio surround-sound system from Harman Kardon. The system offers world premier innovation, featuring a 32-volt TPS (Tracking Power Supply) 12-channel Class D amplifier that delivers outstanding acoustics and brings multi-dimensional, quality sound for all interior occupants.