2007 Dodge Ram 2500 Slt Crew Cab Pickup 4-door 6.7l Cummins Turbo Diesel 6.7 on 2040-cars

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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.

Stellantis aims to eliminate separate inverter, charger to improve EV efficiency

Stellantis has announced that, in collaboration with French battery company Saft and French National Center for Scientific Research, has made significant progress in eliminating two major components of an electric vehicle powertrain: the on-board charger and the power inverter for the motor. The company claims that doing this will allow for better space use in vehicles, as well as improvements in efficiency, cost and reliability of components. As a quick primer, also explained in the below video, the on-board charger and power inverter are sort of translators to get the right current to different parts of the electric powertrain. The on-board charger takes AC power from the grid and converts it to DC to charge the batteries. Then when power goes from the batteries to the electric motor, the power inverter converts that DC power back to AC. These components aren't exactly small. Frequently you'll find them packaged somewhere under the hood. What Stellantis and its cohorts have developed, and have been using on a test vehicle since last summer, are small power inverter boards that can be mounted very closely to the battery packs. They can handle both conversion needs, for charging and discharging, instead of needing two separate devices. The most obvious perk to this is that you can do away with those traditional components and free up more space, either for making smaller vehicles without losing interior volume, or adding space to a vehicle that wouldn't have had it otherwise. There's the additional benefit of reduced weight, something that EVs struggle with. Stellantis also claims improvements in efficiency, reliability, and cost, however, it didn't go into detail as to how this setup would do that exactly. We'll try to get in touch with representatives from Stellantis in order to get more information. We're still a ways out from seeing this technology in production Stellantis vehicles. The company said it aims to apply it to vehicles by the end of the decade. Saft is also looking at using it on stationary battery systems as well. So maybe we'll see it on a 2029 Ram 1500 REV, but for now, we'll be living with traditional chargers and inverters. Related Video: Green Alfa Romeo Chrysler Dodge Fiat RAM Technology Electric

2020 Ford Police Interceptor Utility dominates Michigan State Police testing

The Michigan State Police has released its preliminary findings from testing the 2019 crop of police vehicles, and the results are a bit surprising. The consistent top performer of the bunch was the 2020 Ford Police Interceptor Utility, better known to civilians as the Ford Explorer. Specifically, the top performer was the model with the new turbocharged 3.0-liter V6. The Michigan State Police conducts acceleration, top speed, braking and lap time tests of all the available police vehicles. The 3.0-liter Police Interceptor Utility was the fastest to 60 mph at 5.77 seconds, had the highest top speed of 150 mph, and the best average lap time of 1:36.47. The lap time was particularly impressive as it was just over half a second faster than the next quickest car, the all-wheel-drive V8 Charger. View 13 Photos Still, the 2019 Dodge Charger gave the Explorer a serious run for its money. The all-wheel-drive V8 Charger was only 0.1 seconds behind the Explorer to 60 mph with a time of 5.87 seconds, and the rear-drive version was third quickest at 6.15 seconds. Both V8 Chargers were only 1 mph off of the Explorer's top speed, and the V6 example was third fastest at 141 mph. We already mentioned the all-wheel-drive V8 Charger was half a second off the Explorer's lap time, and the rear-drive variant was just over 1 second behind, giving it the third fastest average time. Dodge also took home braking bragging rights. The V6 Charger won out with a distance of 126.9 feet, followed by the rear-drive V8 Charger with 128 feet, and the V6 Durango Pursuit stopping at 128.8 feet. Now of course where there are winners, there are also losers. The slowest accelerating police car was the Ford Police Responder Hybrid Sedan, better known as the Fusion Hybrid, with a time of 9.24 seconds. At 8.59 seconds was the V6 Dodge Durango, and the V8 Chevy Tahoe with four-wheel-drive was third slowest at 7.98 seconds. Lowest top speed was 106 mph with the Ford F-150 Police Responder with the 3.5-liter turbocharged V6, followed by the V6 and V8 Durangos with 117- and 118-mph top speeds respectively. In braking, the Chevy Tahoes performed the worst with the rear-drive version stopping at 145.7 feet and the four-wheel-drive version stopping at 142.5 feet. The F-150 followed with 141.9 feet. When it came to lap times, the Fusion Hybrid lapped the slowest with a time of 1:46.31. The V6 Durango was about a second faster with a time of 1:45.45.