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Ken Block is at it again in Gymkhana 6

If there's one thing we'll say about Ken Block and his latest installment in the Gymkhana family, it's that it's far more structured than previous videos, but that doesn't mean it skimps on the entertainment. Block is on a purpose-built course which was touted as "The... Ultimate... Gymkhana... Grid... Course" in last week's preview. Unlike Gymkhana 5, which took placed on closed streets in San Francisco, this course seems much more compact.
Block has an entire array of challenges to tackle in his 650-horsepower Ford Fiesta ST, and none of them look particularly easy. In fact, we'd argue that Gymkhana 6's grid course requires much more precise driving that previous titles. There are Segways, Lamborghinis and massive pieces of construction equipment that all must be dealt with.
We've got the entire 6:28 of Gymkhana madness for you down below. Scroll down for the video and then hit Comments and let us know how this installment compares to previous Block works.

Ford dissects the heart of the 2015 Mustang, its engine range

Happy Mustang Day. Are you tired of hearing about the 2015 Ford Mustang yet? No? Good, here's a bunch of mechanical data on Ford's sixth-gen muscle car, along with cutaways of the GT's 5.0-liter V8 and the new 2.3-liter, EcoBoost four-cylinder shown above. We also have a smattering of info on the Stang's updated transmissions and an exploded-parts-diagram view of its all-new independent rear suspension.
Ford is set to make waves offering the Mustang with a turbo for the firs time since the small-volume SVO of the 1980s. Displacing 2.3 liters, the engine's twin-scroll turbo should help the four-cylinder turn out a projected 305 horsepower and 300 pound-feet of torque, while also returning the best fuel economy in the Mustang's engine lineup. As we said in our Deep Dive, the EcoBoost will be slotted in as a premium engine, above the 3.7-liter V6 but below the 5.0-liter V8.
Speaking of that high-revving eight-cylinder, it's receiving a new cylinder head with high-flow ports. The intake and exhaust valves are larger and the cams have been replaced, among other tweaks. It should rev even higher thanks to a rebalanced crankshaft and forged connecting rods. Ford is still claiming a projected 420 hp and 390 lb-ft, although as many of the changes for the 2015's V8 come from the 2013 Boss 302, we're going to assume there's some sandbagging at work.

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).