2012 Audi R8 4.2 Quattro on 2040-cars

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Audi stealthily tests RS4 Avant

With S3s, R8s and RS7s aplenty, Audi offers no shortage of performance models in North America. But one of our favorites is always kept just out of arm's reach. That of course is the RS4 Avant, and here we see Audi Quattro GmbH testing the latest version. Though it may look like a plain old S4 – and even wear S4 badges – the wider fenders and bigger wheels suggest that this is in fact a prototype for the upcoming RS4 Avant. For those unfamiliar, that nameplate connotes the best of all worlds within the A4 range: maximum power, maximum traction, and maximum luggage space. All the ingredients, in short, to make us wonder why anyone would rather drive a crossover. After the first-gen RS4 employed a twin-turbo V6, the subsequent two generations went with a 4.2-liter V8. This model, however, could adopt an electric turbocharger setup to give it all the power it needs (and then some) with a new form of hybrid setup that will soon be spreading across the industry. The bigger question on our mind, of course, is whether the new performance wagon will make the transatlantic voyage to North American showrooms. We're holding out hope that Ingolstadt may make a real run down American roads at the likes of the Mercedes-AMG C63 and BMW M3. Whether it brings the wagon body-style along with it is another matter entirely, but we can always dream. Related Video:

Porsche takes 2016 Le Mans win on last lap, Ford grabs class victory

So far, only one Japanese manufacturer has won the 24 Hours of Le Mans endurance race. That carmaker was Mazda exactly 25 years ago with the legendary, rotary-engined 787B. This year, Toyota was amazingly close to winning with their TS 050 car, piloted by Kazuki Nakajima, and it all ended in tears on the last lap. The Toyota ran smoothly for almost 24 hours, but to lose power and stall on the pit straight with five minutes to go is nothing short of catastrophic. Still, the #5 car was able to be restarted and limped across the finish line for 45th place. Toyota's #6 car had its own set of issues, as the car gained bodywork damage and also veered off track in the hands of Kamui Kobayashi. Driven to second place, the Toyota #6 passed the finish line driven by Stephane Sarrazin. For Porsche, the win with the #2 919 Hybrid was the 18th constructor title at Le Mans 24 Hours. The car was driven by Romain Dumas, Neel Jani and Marc Lieb, and it proved to be more reliable than the #1 919 with Timo Bernhard, Mark Webber and Brendon Hartley behind the wheel. The #2 Porsche and the #5 Toyota battled for the lead throughout the day. Had the Toyota not broken down, Audi would have missed a podium finish for the first time in 18 years - a great run was ruined this year by turbo trouble in the #7 R18 e-tron Quattro driven by Lotterer-Treluyer-Fassler, and the third place was taken by the #8 Audi with Lucas Di Grassi driving. Winners #LeMans24 #919Hybrid @Porsche_Team @neeljani @LiebMarc @RomainDumas but kudos to @Toyota_Hybrid team pic.twitter.com/TLRuwuSTzx — Porsche GB (@PorscheGB) June 19, 2016 ??? #LeMans24 pic.twitter.com/zUkBbA65RK — Peter Leung (@BaronVonClutch) June 19, 2016 In the GTE Pro Class, Ford had reason to celebrate: the #68 Ford GT campaigned by Chip Ganassi Racing took a class win 50 years after Ford's 1-2-3 GT40 Le Mans win in 1966. 50 years to the day following the '66 Le Mans 1-2-3, the No. 68 #FordGT has won the GTE Pro Class at #LeMans24 pic.twitter.com/jkMLuWlEYm — Ford Performance (@FordPerformance) June 19, 2016 For the full list of official results, click here.

The skinny on Delphi's autonomous road trip across the United States [w/videos]

Rolling out of an S-shaped curve along Interstate 95, just past Philadelphia International Airport, the final obstacle between the autonomous car and its place in history appeared on the horizon. So far, the ordinary-looking SUV had traversed the United States without incident. It had gone through tunnels and under overpasses. It circled roundabouts and stopped for traffic lights. Now, on the last day of a scheduled nine-day journey, it was poised to become the first autonomous car ever to complete a coast-to-coast road trip. First, it needed to contend with the Girard Point Bridge. Riding in a rear seat, "I saw that bridge coming, and I thought, 'Oh my gosh, this is going to be a grab-the-wheel moment," said Kathy Winter, vice president of software at Delphi Automotive. The car, an unassuming Audi SQ5 nicknamed Roadrunner, had been well-tested. Back in January, a few inebriated pedestrians fell flat in front of the car during a demonstration in Las Vegas. It was the quintessential worst-case scenario, and the car admirably hit the brakes. More than drunken louts, bridges present a sophisticated challenge for the six radar sensors that feed data to the car's internal processors. Instead of sensing solid objects, radar sensors can read the alternating bursts of steel beams and empty space as conflicting information. "They're a radar engineer's worst nightmare," said Jeff Owens, Delphi's chief technology officer. Girard Point Bridge, a blue skeleton of girded steel that spans the Schuylkill River, might be a bigger challenge than most. Traveling across the lower level of its double decks, the autonomous car's radar sensors had to discern between two full sets of trusses. Cross the Schuylkill, and Delphi's engineers felt confident they'd reach their destination: the New York Auto Show. For now, the sternest test of the trip lay directly in front of them. A Data-Mining Adventure Until that point, the toughest part of the journey had been finding an open gas station in El Paso, TX. Trust in the technology had already been established. The main reason Delphi set out on the cross-country venture with a team of six certified drivers and two support vehicles was to capture reams of data. What better way to do that than dusting off the classic American road trip and dragging it into the 21st century? They did exactly that, capturing three terabytes worth of data across 3,400 miles and 15 states.