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US-bound Audi A3 Sedan spied testing

As the Audi A3 sedan gets closer to its debut, Audi has camouflaged prototypes to take it on the streets for final testing. Last time we saw the A3, it was testing almost in the buff, but it was on a closed track so our spy shooters were kept at quite a distance.
Now that the newest Audi sedan is testing on public roads, our latest batch of spy shots gives us a more detailed look at the entry-level luxury player despite the swirly camo. Except for the oversized wheels and the fancy exhaust outlets and door mirrors, the production version of the car should look almost identical to the A3 sedan concept we saw in Geneva a couple years ago. Some of the details we can see include a good-sized panoramic roof that stretches almost halfway into the rear passenger space and signature Audi LED-accented headlights and taillights.

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.

Audi Quattro concept production hopes still alive, could be more radical

Remember the gestation period of the Lexus LFA, the one that, in automotive time, took so long that its origins could have been carbon dated? We feel like it's deja vu all over again, as Yogi Berra would have said, this time featuring the Audi Quattro and Audi Sport Quattro. It was 2010 when our cameras first glimpsed the Audi Quattro Concept (pictured right) at the Paris Motor Show, and we tasted its turbocharged 2.5-liter, five-cylinder powerplant not long after. Last year we met the hybrid, 700-horsepower Audi Sport Quattro concept at the Frankfurt Motor Show, but we got no closer to finding out if there'd ever be a version we could buy. A report in Autocar keeps the flame of hope burning, quoting Audi design chief Marc Lichte at the LA Auto Show saying, "We are working on Quattro, it is still alive." Lichte went on to say, however, that the next imagining is "more extreme" than those we've seen, and, "There will be surprises." Those words alone are a surprise. The last we heard about the Quattro revival was Audi boss Ulrich Hackenberg saying he wanted a more accessible homage to the original, and we don't know how "more extreme" jives with that. Seeing that Audi is serious about the idea, at least, we shouldn't have to wait long to find out. Just don't get your hopes up about its affordability yet.