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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.

Ford builds Lightweight Concept with Fusion shell [w/video]

It's a fairly well known fact that removing weight from a car is essentially a panacea for many of the modern automobiles problems. Does it handle like crap? Remove weight. Underpowered? Don't add power; trim the fat. Need to improve fuel economy? It's diet time.
Actually executing a major weight reduction program, though, much like with human beings, is no easy task. Unlike you or I, where motivation is the issue, the prohibitive measure in trimming a car's waistline is money. Lightweight materials are expensive, with carbon fiber and carbon-fiber reinforced plastic still primarily in the domain of higher end vehicles. Even aluminum construction, pioneered on a mass-produced level by Audi and Jaguar, is only now starting to make its way into the mainstream, thanks to the upcoming Ford F-150.
With this concept, though, Ford is attempting to show that a mass-produced, lightweight vehicle isn't too far off. This is the Lightweight Concept, and while it may look like a Fusion, it weighs as much as a Fiesta. For reference, the lightest Fusion available to the public is the 3,323-pound, 2.5-liter model with a manual transmission. A manually equipped, 1.6-liter Fiesta, meanwhile, is just 2,537 pounds.

Ford profits soar as problems mount

Ford is doing well. It can't make enough examples of its new Fusion, it can barely make enough of the aging F-150, it's getting good brand rankings, people like its turnaround story, it's selling oodles of product and its quarterly profit numbers end in the word "billion." As other high-flying examples have demonstrated over the past few years, though, big numbers can come with problems that aren't exactly small.
Automotive News has published a good "nutshell" report of Ford's progress and problems. The Dearborn automaker's optimistic "general label rule" determination of gas mileage for the C-Max Hybrid has led to lawsuits, hybrid software updates, a downward revision of C-Max fuel economy and millions in rebates. AN notes the C-Max was the "worst-scoring model in this year's J.D. Power Initial Quality Study," but Ford will probably be happy that it managed not to be mentioned further in the study's results after last year's mediocre showing. Its MyTouch and SYNC systems, the bugbears sabotaging Ford's J.D. Power results, have also led to lawsuits, software updates, more software updates and a center console rethink. On top of that, the 1.6-liter EcoBoost in the 2013 Ford Escape that Ford called a "hero" was soon catching fire for three different reasons. And let's not even get into the troubled launch of the Lincoln MKZ.
The Automotive News piece notes that industry observers have been surprised at Ford's stumbles because everything has been looking so good. Nevertheless, there is still the issue of those billions in profits - the company is doing plenty of things, plural, right. Ford says it is tackling its problems, hiring engineers and instituting new quality control processes as part of its effort to find solutions. The test will be to see if in a year from now we begin the discussion of these issues with "Remember when Ford...", or "Problems continue at The Blue Oval."