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There existed an era in German touring car racing between when the DTM series was revived in 2000 and when BMW rejoined in 2012. During that twelve-season span, the wins were pretty evenly divided between Audi and Mercedes-Benz, the only two manufacturers who took part. Audi won six drivers' titles in that time and Mercedes won six (although Benz won considerably more constructors' titles).

Now that BMW is back in the race, though, it's an entirely different game. BMW has won the lion's share of the races in the past two seasons, taking both titles in 2012 and the constructors' title last season. The winning driver last season, though, was driving the RS5, making Audi the only one that really stands a chance of putting up a fight against BMW. It undoubtedly hopes to extend that challenge in the coming season, and this is the car with which it aims to do so.

Taking on the Mercedes-AMG C-Class Coupe DTM and the new BMW M4 DTM will be the revised RS5 DTM you see here. Bearing a stronger resemblance to the road-going RS5 you can buy, Audi's new DTM challenger benefits from a revised aero package with more streamlined side mirrors, closed rear wheel arches and reprofiled side sills. The V8 engine carries over (much as it did from the previous A4 DTM and A5 DTM) with 456 horsepower driving the rear wheels through a six-speed sequential gearbox.

It's been a work in progress since last May, and will make its race debut at Hockenheim on May 4 when returning champions Mike Rockenfeller, Timo Scheider and Mattias Ekstrom will use it in their campaign to add another title to their names.

Open-source software isn't a new thing, even in the world of racing. Just take a look at the gorgeous Project Cars video game to see what we mean. What is, unusual, though, is an open-source car. And we aren't just talking about any car - we're talking about an open-source Le Mans prototype. Oh yes.

The brainchild of the UK's Nicolas Perrin, the open-source project, called Perrin MyTeam, allows just about anyone to contribute to an attempt to bring a hybrid-powered Le Mans prototype to the 24-hour race in 2015. Participants will have access to everything from CAD information on the car Perrin - an engineer and designer who previously worked in Formula One and sports car racing - designed to budgets, drawings, liveries and even team outfits. According to Perrin, there will be so much data available on the car itself that those with the means would actually be able to produce a miniature 3D print.

"From my extensive time in F1 and even when I was designing sports cars for others, I saw how secretive motorsport really is, preventing fans, enthusiastic students and engineers from getting involved and learning," Perrin said in a statement. "It doesn't have to be like that. We can create a true 'people's team' and by opening everything up, we aim to not only build up a fan base that gets involved to improve the car but also attract backers who share our values."

We'll admit, it's all a very, very intriguing idea. Whether it will ultimately be successful, though, is tougher to figure out. Take a look below for the official press release from Perrin MyTeam, and if you're interested in contributing your time and experience, head over to the team's website.

The Ford GT40 owns a firm spot on the list of the greatest American racecars ever made, being the first car from the United States to take an overall win in the 24 Hours of Le Mans. And now Mecum will auction what it claims is second-oldest GT40 still in existence at its Houston sale on April 12.

The story of the GT40 is fascinating. Henry Ford II attempted to buy Ferrari in the early '60s, but Enzo refused. Ford decided if he couldn't have them, then he would beat the Prancing Horse on the track. Ford went to Carroll Shelby and asked him to spearhead the program. The early cars combined a steel monocoque chassis with Ford's 4.2-liter V8 engine pumping out around 350 horsepower. The first prototype made its public debuted on April 1, 1964, at the New York Auto Show.

Shelby kept building prototypes, including GT/104, which is for sale here. This version featured a lighter steel chassis and was raced at Le Mans in 1964. However, a fire forced it to retire. It was then repainted and had a 4.7-liter (289-cubic-inch) engine fitted. The chassis had its best finish at the 1965 Daytona Continental 2,000 Kilometers where it finished third with Bob Bondurant and Ritchie Ginther behind the wheel. Later that season, it was shipped back to Ford where it was restored and displayed at auto shows until 1971 when the automaker sold it. Since then, it has had many private owners.

Mecum believes that the car currently has the same 4.7-liter V8 that was used in the 1965 season and rare Colotti four-speed gearbox. If the car is everything that it says it is, it combines fantastic looks and a storied racing history. It will be interesting to see how it sells. Scroll down for the full release about its history.

Jeremy Clarkson has become the star of Top Gear with his mix of hyperbole, funny faces and penchant for sometimes putting his foot in his month, and the auto writer's childhood home is now for sale in the UK for a cool 595,000 pounds ($988,848). In addition to the automotive connection, Clarkson's mother created the Paddington Bear stuffed toys there in the '70s.

The farmhouse was built in the 16th century and includes two reception rooms and two bathrooms. However, it's pretty obvious why Clarkson wouldn't want to buy the house himself. According to UK site Zoopla, the garage measures 21 feet long by 12.1 feet wide. That's hardly enough for his supercars.

The four-bedroom house is in the village of Burghwallis in the county of South Yorkshire, England. According to the listing, Shirley Clarkson invented the toys when she made two bears named Paddington as Christmas presents for her children. While she didn't write the original story, the stuffed bears became hugely popular. Click through the gallery for a glimpse into how Clarkson grew up.

When we think of comfy, long-distance road cars, there are a few obvious choices. A Mercedes-Benz S-Class, Bentley Continental GT or, assuming fuel efficiency isn't paramount, a Range Rover are all good options for a road trip. But what if that road trip was 37,000 miles? Maybe something more reliable but still comfortable, then, like a Honda Accord. What about a 1967 Datsun Roadster?

As insane as it sounds, Scott Fisher is doing just that, running a Datsun 1600 Roadster across North America and racking up 13,500 miles in his first three months on the road. His total journey will see him pile over 37,000 miles on his red convertible. The car is lightly modified, but most of the work is for the sake of reliability and comfort, with a five-speed manual 'box, an upgraded radiator and electronic ignition.

Fisher's trip hasn't been all smooth, with a few typical bits of trouble. He also ran into some deer in Utah, quite literally, clipping one of the animals, which delivered quite a bit of damage to the passenger's front fender (hence the rear three-quarter view in our lead shot). Still, the car seems to be holding up well, as shown in this latest video from Petrolicious.

Scroll down for the full video on Fisher and his Datsun.

The passing of William Clay Ford has been a big event for the company he spent most of his life helping run. Ford spent 57 years working for his family's company. Considering the Blue Oval has been around for over 100 years, WCF's passing is the end of an era for the Dearborn-based manufacturer.

Ford's YouTube channel has issued a short memorial video highlighting the life of the longest-lived grandson of company founder Henry Ford. It follows William Clay from his time as a boy, showing him alongside his grandfather, through his younger years, and into his twilight, as the patriarch of the Ford family.

Take a look below for this touching memorial video on William Clay Ford.

The Nürburgring has been officially sold, and it wasn't to HIG Capital and its group of investors as we had previously expected. Instead, Düsseldorf-based Capricorn Development put in a last-minute bid to buy the track for 77 million euros ($106.8 million), and it's promising to invest a further 25 million euros ($34.7 million) into the historic racecourse. The company will take full ownership of the 'Ring on January 1, 2015.

Capricorn is saying all of the right things about its plans for the Green Hell. During the press conference that announced the sale, it said that motorsport will be the focal point of its ownership, and the track will remain open to the public. It wants to work with companies to create a technology center there and bring more industry to the Nürburgring region. The company already has an office at the 'Ring that supplies lightweight components to automakers and racing teams, according to RP Online.

According to Piston Heads, which attended the press conference, Capricorn's bid arrived with minutes to spare. It beat HIG Capital, which reportedly offered between 60 million and 70 million euros ($83.2 million to $97 million), because of the promise to bring new business to the area.

The major lingering question about the track's future is whether Formula 1 can remain at the grand prix course. Bernie Ecclestone previously threatened to hold future German Grands Prix only at Hockenheim. While it's too early to say for sure, Capricorn says that F1 is the pinnacle of the Nürburgring, according to Rhein Zeitung. At least we know it's valued.

After a year of questions, one of world's greatest racetracks will remain in German hands. If Capricorn stays true to its word, then it looks like the tracks legacy is only going to get better. The 'Ring lives!

Much like it did yesterday, Fiat Chrysler Automotive is announcing a voluntary recall of the five-door Fiat 500L. Where yesterday's recall covered Jeep and Dodge SUVs over performance issues with the brakes, today's bulletin is perhaps more serious.

Over 19,000 500Ls equipped with the Fiat-sourced, six-speed, dual-clutch automatic are being called in for a software update that should sort out the issues some customers are experiencing with the gearbox. Those troubles mainly consist of 500Ls that won't shift out of park and don't respond or are slow to respond to commands for gear changes.

There have been no reported injuries or accidents due to the problems, which investigating engineers believe is caused by a microcontroller component that doesn't react well with temperature extremes.

Of the 19,500 vehicles being recalled, around 20 percent are in dealership inventories. The vast majority of the cars (18,100) are in the US, while the remaining 1,400 are up north, in Canada.

Fiat will be covering the costs of the software reflash and will begin notifying customers soon. Scroll down for the official release from Fiat Chrysler.

In 2013, Americans took a record 10.7 billion trips on public transit.

I don't like public transportation. It's a completely irrational dislike, I'll admit, and is largely due to the fact that I'm a control freak. It's the reason I like living in Detroit, rather than New York, Chicago, London, Paris or any other city with a sprawling transit system - I have to drive everywhere. Senior Editor Steven Ewing, though, loves public transportation. During the Chicago Auto Show, he was genuinely disappointed that we could walk or be shuttled everywhere, rather than take his beloved "L" Train or shove our way onto a CTA bus, like in years past. Based on a new study, though, it seems like more and more people are siding with Mr. Ewing when it comes to buses, trains and subways.

According to a study released by the American Public Transportation Association, in 2013 Americans took a record 10.7 billion trips on public transit, a 57-year high. This isn't a new phenomenon either, as the US has cracked the 10-billion-trip mark for the eighth year in a row. There was a 2.8-percent jump in the number of people riding subways and elevated trains with over half of the systems studied recording an increase. Light rail, meanwhile, saw a 1.6-percent jump nationwide, with 17 of the 27 systems in the US seeing upticks.

More surprising is that the number of transport networks aren't limited to big cities like Los Angeles, New York or Chicago. Smaller metropolises are seeing increases in the use of public transport, with places like Austin, TX, Minneapolis, MN and Portland, OR seeing double-digit jumps in subway and other heavy rail. Salt Lake City, UT, meanwhile, recorded a massive 103.3-percent increase in its heavy rail. It's a similar story in smaller cities that use light rail, like trolleys and streetcars.

Why the increase, though? Not surprisingly, the improving economy is playing a big role. As The Detroit Free Press points out, governments are restoring service in the wake of the Great Recession. Drops in unemployment are also leading to a surge in passengers, with the APTA study claiming that 60 percent of trips on public transit are work related.

"Access to public transportation matters," said the APTA's president and CEO, Michael Melaniphy. "Community leaders know that public transportation investment drives community growth and economic revitalization."

Scroll down to have a look at the APTA's press release to see the results of the study. What's public transit like where you live? Would you like to see an increase in projects around you? And at what would it take to get you out of your car and onto a bus, train or subway? Have your say in Comments.

Episode #371 of the Autoblog podcast is here, and this week, Dan Roth, Michael Harley and Steven Ewing recap the Geneva Motor Show, talk about the 2015 Audi A3, the BMW X4, and the possibility of a Volkswagen pickup coming to the US market. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening!

Autoblog Podcast #371:




Topics: In the Autoblog Garage:

• 2014 Honda Accord Hybrid Touring
• 2014 Porsche Panamera Turbo
• 2014 Chevrolet SS

Hosts: Dan Roth, Michael Harley, Steven Ewing
Runtime: 01:51:12
Rundown:

• Intro and Garage - 00:00
• Geneva Motor Show - 32:41
• Audi A3 - 54:47
• BMW X4 - 01:13:29
• VW Pickup - 01:25:02
• Q&A - 01:30:09

---

Get the podcast:
[UStream] Listen live on Mondays at 10 PM Eastern at UStream
[iTunes] Subscribe to the Autoblog Podcast in iTunes
[RSS] Add the Autoblog Podcast feed to your RSS aggregator
[MP3] Download the MP3 directly

Feedback:
Email: Podcast at Autoblog dot com

Review the show in iTunes

R1234yf, the refrigerant jointly developed by Honeywell and Dupont that is being phased in as a replacement for R134a in Europe, is safe. So says a panel of scientists from the Joint Research Council, researching the refrigerant at the request of the European Commission. German automaker Daimler, though, disagrees with the finding, saying R1234yf can be toxic to humans when burned, according to Automotive News.

In case you haven't been following this real-life drama, the old refrigerant was banned in Europe due to environmental risks. Daimler refused to use the replacement refrigerant, prompting a short ban on the sales of Mercedes models in France, saying it was holding out for air conditioning systems that relied on carbon dioxide instead of R1234yf.

Neither side seems ready to concede defeat, Daimler saying in a statement that it believes the tests conducted on the new refrigerant were "too restrictive" and the EU Commission saying that there is "no evidence of a serious risk." The next step? Stay tuned, we suppose...

About a month ago, tragedy struck the National Corvette Museum when a sinkhole opened up underneath the facility, swallowing eight cars and causing tons of carnage in the process. We saw it all on video, learned how Chevy would extract the damaged 'Vettes, and even checked in on the repair process. Terrible stuff, for sure.

But is it a conspiracy, all part of the government's "sinkhole hoax plan?" According to World Wide Web whiz Zurnmusic, that's exactly what's going on here.

In a nearly nine-minute-long video posted to YouTube, and discovered by our friends at Autoweek, one guy goes through the process of debunking what he says is obviously just a bunch of fakery. His proof? "The floor looks like it's made out of paper ... uh, styrofoam." And that blue 2009 Chevy Corvette ZR1 found in the sinkhole? It's obviously a Hot Wheels car, duh. In fact, the exact same die-cast car that you can buy online. Tricky, tricky.

Have a look below to watch the entire conspiracy video for yourself. And if you're of like mind, please be sure to tell us all about it in the Comments.

Chevrolet made a splash with its retro design for the reborn, fifth-generation of its Camaro way back when the first concept car debuted at the 2006 Detroit Auto Show. Since then, we've watched the production car age rather gracefully while remaining a strong competitor to the Ford Mustang and Dodge Challenger. Still, the current model is getting a bit long in the tooth, meaning we can start speculating about what the sixth-generation model will look like.

According to Edmunds, the next Camaro will be much more Charles Darwin than Simon Bolivar. In other words, expect an evolution of the current car's design, rather than a clean-sheet restart. That's actually pretty surprising considering GM is preparing to shift the Camaro to the rear-drive architecture that underpins both the Cadillac ATS and CTS. Generally, maintaining styling when a car switches platforms presents some challenges, but we're quite happy to see the Camaro will retain the same general look. Muscle cars and retro styling work quite nicely together.

"The difference between the existing and redesigned [Camaro] is not drastically different," an inside source told Edmunds. "It looks like a worked-over current-model Camaro. It is on a different platform, so that is a significant difference, but when they modified it to be on a different platform, the styling did not change that much."

Edmunds also reports that the sixth-gen Camaro should debut in just under a year, at the 2015 Detroit Auto Show as a 2016 model.

Let it never be said that there isn't money to be made selling high-end exotic sports cars. Last month Ferrari revealed that it had recorded record profits despite selling fewer vehicles than the year before. Now arch-rival Lamborghini has reported record revenue.

For the 2013 fiscal year, Lamborghini has announced that its revenue has increased for the third year straight – rising from 469 million euros last year (just short of $650 million at today's rates) to a record 508 million euros (over $703 million). Lamborghini reports that it has reinvested 20 percent of that turnover back into R&D.

The increased revenues come despite having discontinued its top-selling model, the Gallardo, which wound up its ten-year production run back in November to make way for the new Huracán. The increased revenues came from a higher proportion of Aventadors sold, a rise of 9 percent from 922 units in 2012 to 1,001 in 2013, representing a record for V12 models sold in the company's history and a waiting list of 12 months for a new Aventador.

At 36 percent of Lamborghinis sold last year, the Americas continue to stand as the Bolognese automaker's largest market, but not by much: EMEA (Europe, the Middle East and Africa) accounted for 34 percent, while Asia Pacific accounted for the remaining 30 percent of Raging Bulls sold last year.