707 horsepower and 650 lb-ft of torque, the supercharged 6.2-liter Hemi V-8 engine makes the 2015 Dodge Challenger Hellcat SRT the most powerful and fastest production muscle car ever. To put it numerically, the Hellcat brings 45 more horsepower than the last Shelby Mustang GT500, 127 more horsepower than the last Camaro ZL1 we tested, and 67 more hp than the V-10 in the current Viper. Dodge conjured up those 700-plus horses without selling its soul: Essentially a de-stroked version of the 6.4-liter Hemi, the supercharged 6.2-liter uses a forged-steel crank with hardened bearing surfaces, forged pistons, and powdered forged rods with beefier bushings and carbon-coated pins. The heat-treated aluminum heads are made of a higher-grade, higher-cost alloy to put up with the hard thermal cycling that owners of a 700-plus-horsepower car are likely to put them through. Boost comes from an IHI screw-type supercharger, the charge kept reasonably cool by dual water-to-air intercoolers. A nearly straight-through exhaust—with electronic valves that open up for more sound—helps the spent exhaust gases exit. Grunt gets channeled through either the Tremec TR6060 six-speed manual or a TorqueFlite eight-speed automatic, and it is then routed to the rear wheels via an uprated driveshaft, axles, and a rear differential with additional cooling. NHRA certified 10.8 @ 126 with street legal drag radial tires. *NHRA certified 11.2 @ 125 with production tires. For the first time in Challenger history, choose a robust new HP90 eight-speed automatic transmission for grabbing gears. Steering wheel-mounted paddle shifters activate new rev-matching technology during downshifts. Or manually choose your gears with a venerable Tremec six-speed transmission with larger, higher-capacity clutch. There’s a little Viper in the Challenger SRT® Hellcat. At the end of the day, this is the biggest, most-capable brake system SRT has ever installed in a passenger car. Dodge has priced its new musclecar at $60,990
Hellcat Unleashed: The 2015 Dodge Challenger SRT! – World’s Fastest Car Show Ep 4.7:
2015 Dodge Challenger SRT Hellcat
BASE PRICE $60,990
VEHICLE LAYOUT Front-engine, RWD, 5-pass, 2-door coupe
ENGINE 6.2L/707-hp/650-lb-ft s’charged, OHV 16-valve V-8
TRANSMISSION 6-speed manual; 8-speed auto
CURB WEIGHT 4200-4400 lb (mfr est)
WHEELBASE 116.2 in
LENGTH X WIDTH X HEIGHT 197.9 x 75.7 x 55.7 in
0-60 MPH 3.9-4.5 sec (MT est)
EPA CITY/HWY FUEL ECON Not yet rated
ON SALE IN U.S. Third Quarter 2014