1990 Super Coupe/supercharged 3.8l on 2040-cars

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Shelby GT350R offers first mass-produced carbon fiber wheels

In the world of race engineering, reducing total weight is good, but reducing unsprung weight is flippin' fantastic. That's the reason Ford is pushing the envelope in terms of technology for the Shelby GT350R's wheels. Joining the likes of Koenigsegg in the offering, Ford has teamed with Australian outfit Carbon Revolution to produce the CF rollers en masse for the first time. Destined for the hubs of the new Shelby GT350R, the new hoops weigh just 18 pounds each, versus the 33-lbs weight of a similar aluminum wheel. On top of slashing up to 60 pounds in unsprung weight, there's such a reduction in rotational inertia – 40 percent, versus aluminum wheels – that Ford actually has to recalibrate the magnetic ride control system and springs. Thanks to, we're guessing, scenes of crashed Formula One cars disintegrating and spewing shards of carbon fiber all over the track, Ford seems quite keen to do away with the idea that CF is strong, but brittle. The company conducted extensive shock testing, ramming a wheel into a curb at speed. According to the Blue Oval, the lightweight wheel allowed the suspension to respond so quickly that the impact was "greatly diminished," causing the tester to run the experiment again, thinking there'd been a mistake. After recording brake rotor temperatures of 900 degrees Celsius (over 1,650 degrees Fahrenheit, or well past the point that aluminum or magnesium would melt) during testing, Ford and Carbon Revolution actually redesigned the wheels to "a thermal standard more suitable for motorsports," by adding an "incredibly thin, nearly diamond-hard coating that reliably shields the resin from heat." The same process was used to protect engine turbine blades on the Space Shuttle. While the work by Ford and Carbon Revolution should make GT350R customers excited, the work being done here could have serious implications for performance cars in the future. That's the real takeaway here, and is something that should leave fans of all performance vehicles excited.

Aluminum lightweighting does, in fact, save fuel

When the best-selling US truck sheds the equivalent weight of three football fullbacks by shifting to aluminum, folks start paying attention. Oak Ridge National Laboratory took a closer look at whether the reduced fuel consumption from a lighter aluminum body makes up for the fact that producing aluminum is far more energy intensive than steel. And the results of the study are pretty encouraging. In a nutshell, the energy needed to produce a vehicle's raw materials accounts for about 10 percent of a typical vehicle's carbon footprint during its total lifecycle, and that number is up from six percent because of advancements in fuel economy (fuel use is down to about 68 percent of total emissions from about 75 percent). Still, even with that higher material-extraction share, the fuel-efficiency gains from aluminum compared to steel will offset the additional vehicle-extraction energy in just 12,000 miles of driving, according to the study. That means that, from an environmental standpoint, aluminum vehicles are playing with the house's money after just one year on the road. Aluminum-sheet construction got topical real quickly earlier this year when Ford said the 2015 F-150 pickup truck would go to a 93-percent aluminum body construction. In addition to aluminum being less corrosive than steel, that change caused the F-150 to shed 700 pounds from its curb weight. And it looks like the Explorer and Expedition SUVs may go on an aluminum diet next. Take a look at SAE International's synopsis of the Oak Ridge Lab's study below. Life Cycle Energy and Environmental Assessment of Aluminum-Intensive Vehicle Design Advanced lightweight materials are increasingly being incorporated into new vehicle designs by automakers to enhance performance and assist in complying with increasing requirements of corporate average fuel economy standards. To assess the primary energy and carbon dioxide equivalent (CO2e) implications of vehicle designs utilizing these materials, this study examines the potential life cycle impacts of two lightweight material alternative vehicle designs, i.e., steel and aluminum of a typical passenger vehicle operated today in North America. LCA for three common alternative lightweight vehicle designs are evaluated: current production ("Baseline"), an advanced high strength steel and aluminum design ("LWSV"), and an aluminum-intensive design (AIV).

Dodge Challenger outsold Mustang, Camaro in third quarter of 2019

The Dodge Challenger is nearly old enough to start driver's ed in some states, and it doesn't have a firm grasp on the increasingly crucial concept of downsizing, yet it beat the odds to become the most popular American two-door model during the third quarter of 2019. Its ballooning sales figures suggest buyers don't always want the latest, most advanced car they can get their hands on. Dodge sold 18,031 examples of the Challenger during the third quarter of 2019, a shocking 21% increase over the same period in 2018. It's a true muscle car, normally sardined in the same can as the Chevrolet Camaro and the Ford Mustang, a pair of smaller, nimbler two-doors that are much closer to the historic definition of a pony car. Semantics aside, the Mustang finished on the second spot of the sales podium with 16,823 sales, a 12.3% drop compared to the third quarter of 2018, and the Camaro took third with 12,275 sales, a 15% dip that alarmingly comes in the wake of two redesigns. More specific sales figures aren't available. We don't know what percentage of the sales mix V8s represent, or whether buyers prefer manual or automatic transmissions. The scoreboard looks different when we examine 2019's year-to-date figures. The Mustang takes first place with 55,365 sales, followed by the Challenger at 46,699, and the Camaro at 36,791. While the Challenger's recent ascent is encouraging, it can't mask the fact that two-door models no longer enjoy a favorable tailwind, and the entire segment — not just the American entries — is declining. The aforementioned year-to-date figures are down by 10.1, 11, and 7.6 percent, respectively. The third-quarter statistics revealed a handful of other surprises unrelated to the world of performance. Dodge notably sold three examples of the Dart, a sedan it hasn't built since 2016. That's a 93% drop compared to the 45 units that found a home during the third quarter of 2018.