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Hellcat no help to Fiat-Chrysler's bottom-of-the-pile mpg average

What, you expected the "fastest muscle car ever" to help fleetwide fuel economy? Nope, don't think that's going to happen. That means Fiat Chrysler will likely to continue to languish at the bottom of the heap when it comes to fleetwide fuel economy among the largest automakers serving the US, especially as the automaker starts to sell its Dodge Challenger SRT Hellcat. A few hundred Fiat 500E electric vehicles aren't going to turn the trend around. See, Chrysler has once again finished at the bottom of the list when it came to fleetwide fuel economy among automakers for 2014 model-year vehicles, according to a preliminary study by the US Environmental Protection Agency. Chrysler and Fiat had an average of 21.1 miles per gallon. That substantially lagged the overall 24.2 mpg average, but it was an increase from the company's 20.9 mpg average last year and the 20.1 mpg average two years prior. For 2014, General Motors had the second-worst fleetwide fuel economy at an even 22 mpg. Fiat Chrysler does say it's working on improving its fuel economy, according to Automotive News. The company plans on making its inline-four-cylinder and V6 engines smaller, and will sell more vehicles with eight- and nine-speed transmissions. Heck, there's even a plug-in hybrid version of the Chrysler Town & Country minivan in the works for late 2015, and the company can tout fuel-efficiency gains with the Chrysler 200 and Jeep Cherokee. We would be remiss if we didn't note that, compared to its muscle-car forefathers, the Hellcat actually performs pretty well at the pump. Last month, word got out that the 2015 Challenger Hellcat, equipped either with a six-speed manual or an eight-speed automatic transmission, got a combined fuel economy of 16 mpg. Heck, the automatic-tranny version got 22 mpg on the highway. And that's for a car with 707 horsepower and a 10-second quarter-mile time. Still, with the pedal floored, the car can burn a gallon and a half of fuel per minute. Ouch.

Gauging reaction to the 2015 Dodge Charger Pursuit on Detroit highways

Steven Ewing and I kind of pretended to be cops a few weeks ago. No, not in the illegal way; we just took turns driving the 2015 Dodge Charger Pursuit around Detroit and its suburbs, learning invaluable life lessons along the way. A lot of those lessons came in the form of weird reactions from other drivers. Steve peeved his neighbors by surprising them in the parking lot, I can damn close to sitting in jail next to a murderer and we both caught our fair share of evil-eyed glances. One of my very first observations was a pronounced "bubble effect" when driving in traffic on the highway. Attempting to recreate the effect for the video camera, I grabbed Senior Producer Chris McGraw and we went for a ride in the name of pseudo psychology. The results weren't exactly as we'd predicted, but we had fun all the same. Get one more dose of your cop car fix, above.

Will airbags sandbag the 2017 Dodge Viper?

The Dodge Viper is speeding down the road to cancellation for the 2017 model year, and at least part of the reason for the V10 monster's death is a problem fitting it with federally mandated side curtain airbags. An anonymous source close to FCA US told Motor Trend the automaker can't install the parts because they would further limit the coupe's already tight headroom. The government believes the side curtain airbags can reduce occupant ejections during accidents, and all vehicles must have them for the 2017 model year. The Viper's slow sales also don't provide FCA US much motivation to work out a solution to this problem. The automaker moved just 676 of the handmade sports coupes in the US in 2015, which was down 11 percent from 760 deliveries in 2014. FCA CEO Sergio Marchionne hinted at the Detroit Auto Show that the Viper could return eventually. He doesn't like that the current model has a dedicated platform but indicated a new one could share the underpinnings with another of the company's products. Marchionne's current business plan for FCA stresses building the automaker's value, so it might be a while before we see the sweater-clad CEO focusing on a niche vehicle like the Viper. Related Video: