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Race Recap: 2014 24 Hours of Le Mans defines 'endurance'

Commenting on the rush of events that rocked beginning and end of the 24 Hours of Le Mans, Paul Truswell of Radio Le Mans said "the race is about the ability to endure, not just the ability of drivers to do what they do for a long time." The entire race machine, all the way down to the pit boards and radios, has to survive the stress and abuse of the entire day. This was the race to prove those words.
There were two Toyotas, two Porsches and three Audis, five of the seven led the race at some point, six of the seven ran in the top three. Toyota will be hugely disappointed that it didn't win when its car and drivers were so, so strong, but they gave Audi the kind of scare we haven't seen since the best of Peugeot's days, and Toyota did a better job of it even in the loss. Porsche blew away everyone's expectations, falling 3.5 hours short of a fairy tale ending that would have made Disney cry.
But Le Mans doesn't really do fairy tales. Well, not that fairy tale. Audi's Twitter handle during the event was #welcomechallenges. As usual, Le Mans answered for the entire field.

Welcome Audi RS6 Avant, goodbye Lincoln Continental | Autoblog Podcast #592

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and Assistant Editor Zac Palmer. Our editors cover a lot this week, starting with the news. They geek out over the Audi RS6 Avant coming to America, and mourn the loss of the Lincoln Continental. They address rumors of the Toyota Land Cruiser's demise, and analyze spy photos of the Ford Mach E electric crossover. They also honor the memory of the godfather of spy photography, Jim Dunne. Finally, they talk about driving the BMW Z4, Ram 1500 EcoDiesel, and another diesel, the diesel-powered Mazda CX-5 Skyactiv-D. Autoblog Podcast #592 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Audi RS6 Avant headed to U.S. Lincoln Continental discontinued Rumor: Toyota Land Cruiser to be canceled Ford Mach E spied RIP spy photographer Jim Dunne Cars we're driving: 2019 BMW Z4 sDrive30i 2020 Ram 1500 EcoDiesel 2019 Mazda CX-5 Diesel Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:      

How Toyota's 100-year textile history influenced FCV hydrogen fuel cell car

Turns out, Toyota had a surprising ace in the hole when it came to building the new fuel tanks for the FCV hydrogen fuel cell car, which is coming next year. Well before Toyota became the Toyota Motor Company, it was the Toyota Industries Corporation and it made textile looms. This is important because the main structure of the hydrogen tank is wound carbon fiber. When Toyota set out to increase the strength of the tanks to hold hydrogen stored at 10,000 psi (up from 5,000 in the previous tanks), it was able to draw on its 100-year-old history as it designed its car of the future. "A lot of that textile experience came back when we did the tank wrapping." – Justin Ward "We have a lot of experience with textiles," Justin Ward told AutoblogGreen at the 21st World Congress on Intelligent Transport Systems (ITS) in Detroit this week, "and a lot of that textile experience came back when we did the tank wrapping." On top of being able to hold the higher-pressure hydrogen, Toyota's first attempt to build its own hydrogen tank was six times faster than the industry standard, so it saved time and money as well as working better. The company will also be able to inspect its own tanks. Ward is the general manager of powertrain system control at the Toyota Technical Center and hydrogen vehicles are something he knows a lot about. The reason for the stronger, 10,000-psi tanks is because the 5,000-psi tanks only offered around 180-200 miles of range, even with four tanks in the early $129,000 FCHV Highlander hydrogen prototypes. The FCV only has two, but they will able to deliver the 300-mile range that customers told Toyota they wanted. Dropping the number of tanks not only obviously reduced the cost for the tanks themselves but also the number of valves and hoses and other components you need. Despite the benefits of higher compression, going much higher doesn't make sense. 10,000 psi is the "natural progression," Ward said, because "you start to bump up against compression inefficiencies." Think of an air compressor. When hydrogen is produced at a wastewater treatment plant or a reforming site, Ward said, is it at around ambient pressure (14 psi). That has to be raised, using compressors, all the way to 10,000 psi. "That takes energy," Ward said, "and every doubling of pressure adds another doubling of energy needed, so it starts to add up pretty fast if you go too high." Component specifications are also fine at 10,00 psi, but more difficult at higher levels.