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2018 Dodge Challenger SRT Hellcat Widebody | First Run at Indianapolis Motor Speedway

In addition to driving the Dodge Demon, we also had a chance to sample the 2018 Dodge Challenger SRT Hellcat Widebody last week. We drove it on the famed infield road course at the Indianapolis Motor Speedway. We're not at liberty to give you our impressions just yet, but you can experience the sights and sounds of the 707-horsepower Hellcat Widebody in the above video. Thanks for watching. Check back on Wednesday, July 19, to read about the experience.

2020 Dodge Challenger SRT Super Stock is as close as you can get to a new Demon

Although the Dodge Demon was an exclusive, one-year-only muscle car, Dodge has found ways of getting bits of that car to more people. First there was the Hellcat Redeye, that got a detuned version of the Demon engine, down from 840 horsepower to 797. Now there's the 2020 Dodge Challenger SRT Super Stock. It starts with the Hellcat Redeye, but adds a bit of horsepower, and drag race-specific tires and suspension tuning to get one step closer to the monster Demon. The engine is basically the same supercharged 6.2-liter Hemi V8 as the Redeye, but with a new engine calibration that bumps up horsepower by 10 to 807, though torque stays the same at 707 pound-feet. It's coupled to the same eight-speed automatic as the Hellcat Redeye, but it has also been retuned to shift 100 rpm later at 6,400 rather than 6,300 to squeeze as much out of each gear as possible. The rear differential is a limited-slip unit and comes standard with a 3.09:1 gear ratio, which is optional on regular Hellcat Redeyes. The Super Stock also gets revised chassis components. Instead of the regular Hellcat Brembo six-piston brakes up front, it gets lighter four-piston Brembo calipers with slightly smaller rotors, all in the name of going faster at the drag strip. The suspension has been retuned to shift weight to the rear wheels and improve traction at launch. In Track mode, the suspension switches to fully firm rebound and compression at the rear, and firm compression and soft rebound at the front to help facilitate the weight transfer. It stays in this mode as long as full throttle is applied, and reverts to the standard Track settings when lifting off the throttle. The final piece of the drag racing puzzle are the wheels and tires. The regular Redeye's huge wheels and low profile tires are gone in favor of wheels that are just 18 inches in diameter. They're fitted with Nitto NT05R drag radials, the same make and model as on the Demon, at each corner for maximum traction at the strip. These are also the only indicators that you have a Super Stock. All the other badging is the same as the Hellcat Redeye, so only those in the know will recognize a Super Stock model. The final results of these drag-racing enhancements are impressive. Dodge claims a 0-60 time of 3.25 seconds, and a quarter-mile time of 10.5 seconds. Apparently it will finish three car lengths ahead of a regular Redeye at the drag strip. Top speed is less formidable at 168 mph, but that's a limit of the drag tires.

NHTSA closes investigation on 4.7M FCA power modules, no recall

FCA US hasn't had the best time with recalls as of late. Not only did the company recently agree to greater safety oversight and paid $105 million to the government, that came just days after hacking fears prompted a 1.4-million model recall campaign. However, a recent decision to close an investigation by the National Highway Traffic Safety Administration means that the automaker doesn't have to worry about another major recall possibly affecting 4.7 million vehicles, according to the agency's report (as a PDF). Last September, the Center for Auto Safety petitioned NHTSA to investigate an alleged problem with the totally integrated power module (TIPM) on these FCA US models. The group claimed that a fault with the component could cause a variety of maladies, including stalls, not starting, catching fire, unintended acceleration, and airbag non-deployment. At the time, it also submitted 70 cases where this had reportedly happened. According to NHTSA, "no valid evidence was presented in support of claims related to airbag non-deployment, unintended acceleration, or fire resulting from TIPM faults and these claims were found to be wholly without merit based on review of the field data and design of the relevant systems and components." The agency did find signs of an issue with the fuel pump relay in some Jeep Grand Cherokees and Dodge Durangos, but FCA US issued recalls for the problem in September 2014 and February 2015. Without anything else to go on, the Feds don't think it's worth investigating this topic any more.