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Nuclear-powered concept cars from the Atomic Age

In the 1950s and early 60s, the dawn of nuclear power was supposed to lead to a limitless consumer culture, a world of flying cars and autonomous kitchens all powered by clean energy. In Europe, it offered the then-limping continent a cheap, inexhaustible supply of power after years of rationing and infrastructure damage brought on by two World Wars.
The development of nuclear-powered submarines and ships during the 1940s and 50s led car designers to begin conceptualizing atomic vehicles. Fueled by a consistent reaction, these cars would theoretically produce no harmful byproducts and rarely need to refuel. Combining these vehicles with the new interstate system presented amazing potential for American mobility.
But the fantasy soon faded. There were just too many problems with the realities of nuclear power. For starters, the powerplant would be too small to attain a reaction unless the car contained weapons-grade atomic materials. Doing so would mean every fender-bender could result in a minor nuclear holocaust. Additionally, many of the designers assumed a lightweight shielding material or even forcefields would eventually be invented (they still haven't) to protect passengers from harmful radiation. Analyses of the atomic car concept at the time determined that a 50-ton lead barrier would be necessary to prevent exposure.

2016 Ford Police Interceptor Utility is ready to tackle Chicago's mean streets

As is the way of things, when a civilian vehicle gets a significant update, it's only a matter of time before its police counterpart gets similar upgrades. In the case of the Ford Police Interceptor Utility, it's debuting with the same visual updates as the Explorer on which it's based, at this week's 2015 Chicago Auto Show. Like the civilian-market Explorer, the PI Utility is available with a standard 3.7-liter V6 that pumps out 304 horsepower and 279 pound-feet of torque. The higher-caliber option is the tried and true 3.5-liter EcoBoost V6, complete with 365 hp and 350 lb-ft of torque. The standard Explorer's optional 2.3-liter EcoBoost four-cylinder, meanwhile, won't be offered to the boys in blue. Regardless of engine, the Utility enjoys standard all-wheel-drive, as well as a six-speed automatic transmission. The tranny's default setting is primarily for fuel sipping, although if it detects more aggressive inputs – based on brake line pressure, deceleration and lateral acceleration rates – it switches over to Pursuit Mode, offering officers snappier upshifts and more aggressive downshifts. The PI Utility's other cool, new system is called Surveillance Mode. To protect officers from sneak attacks, Surveillance Mode warns them when someone approaches the rear the car, raising all four windows and locking the doors. While Ford says the system has "intermittent fault filter technology" to prevent "erroneous changes in sensor signals," we're betting it won't be long before veteran officers uncover some way to prank rookies with the tech. Beyond these new systems, this is the same Utility that officers know and love, only with a significant facelift reminiscent of what's found on the civilian model, which debuted at the 2014 Los Angeles Auto Show. The new grille has a positive impact on cooling performance, Ford claims, while a new headlight setup accommodates the high-beam-based "wig-wag" lights. The new look has also allowed Ford to offer police departments additional customized lighting options, for that special touch. Inside, a new steering wheel and center console should make officers' lives easier, as will the new (and requested) liftgate release button, found in the overhead console. Check out the first images of the new Police Interceptor Utility (and, sporty drivers, memorize that headlight pattern) up above. Be sure to check back for additional live images once we check out Ford's latest cop car, at the 2015 Chicago Auto Show.

2019 Chevy Silverado 1500 vs. 2019 Ram 1500 vs. 2018 Ford F-150: How they compare

The full-size pickup truck market is seriously hot right now. Both Ram and Chevrolet have introduced completely redesigned trucks, the 2019 Ram 1500 and the 2019 Chevy Silverado, and as the companies slowly roll each one out, more and more information comes to light. We've put together this comparison post to help you keep track of all the features and specifications of each of these new models, along with the updated 2018 Ford F-150. Among the stats we'll take a look at are engines, power, fuel economy, trim levels, weight and more. Weight savings Both the 2019 Ram 1500 and 2019 Chevy Silverado 1500 have gone on a diet for the new model year, similar to the one the F-150 went on in 2015. The Silverado is the weight-loss leader, having shed 450 pounds when comparing quad-cab V8 models. The Ram 1500 lost 225 pounds compared to the current truck. Both trucks achieve their weight loss in part due to the use of aluminum parts. On the Silverado, the hood, doors, and tailgate are aluminum, while on the Ram, just the hood and tailgate are aluminum on the body. Compare that to the F-150, which uses aluminum for all exterior body panels for a total weight loss of up to 732 pounds, which makes the aluminum-intensive F-150 the weight-loss leader. View 160 Photos Engines and transmissions There's only a bit of overlap in powertrains on the Ram 1500 and Chevy Silverado. Each has a V8 for the top engine. The Ram's is a 5.7-liter Hemi V8 making 395 horsepower and 410 pound-feet of torque. The Silverado will once again use a 6.2-liter V8 as its range topper with the same 420 horsepower and 460 pound-feet of torque as the current model. Both of these V8s boast some extra fuel saving technology. The Chevy's 6.2-liter (and some 5.3-liters) comes with the company's latest cylinder deactivation system that can shut off any or nearly all of the eight cylinders. The Ram's V8 boasts an optional 48-volt mild-hybrid system that, in addition to likely helping fuel economy, can provide up to 130 pound-feet of torque right off the line. With the Ram, fuel economy sees an improvement of 2 mpg in the city and combined ratings for 17 and 19 respectively. Highway fuel economy improves by 1 mpg to 23 with two-wheel drive and 22 with four-wheel drive. The Silverado's 6.2-liter V8 only improves city fuel economy by 1 mpg to 16, and actually loses 1 mpg on the highway. The new 5.3-liter engine with the fancy cylinder deactivation does see an improvement over the simpler version.