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Lamborghini Aventador SV Roadster spied testing undisguised

Lamborghini typically does more versions of its V10 models than it does with its V12s. Just look at how many model variants the Gallardo spun off over its many years of production, compared to the few the Murcielago did. But with both now retired, and the Aventador on the market longer than the Huracan, it's the larger of the two that's beefing up the Raging Bull's product portfolio. We're looking at and referring to the upcoming Aventador SV Roadster. Lambo has already confirmed that the Superveloce Roadster was in the works, and we even saw a heavily camouflaged prototype undergoing testing near the Arctic Circle. But this time it's completely undisguised, without a shred of camouflage to keep it from our prying eyes. It isn't hard to guess at the technical details here, since it combines the best attributes of two existing versions: namely the LP 700-4 Roadster and the LP 750-4 Superveloce. So look for a 6.5-liter V12 channeling 740 horsepower to all four wheels through the company's proprietary seven-speed ISR transmission, just like the SV coupe. It'll be a bit heavier with its removable carbon-fiber roof panel and the requisite extra bracing, but it's doubtful the slight weight penalty will actually translate to any substantial drop in performance. Noticeably absent, however, is the big rear wing that adorns the back of the SV coupe. We'll have to hold tight to find out if the production version will get the spoiler or not, and there's little precedent to go by here since Lambo has never really offered a convertible Superveloce before. With the wing or without, the Lamborghini Aventador LP 750-4 Superveloce Roadster will likely debut at the Frankfurt Motor Show come September, with production already confirmed to be limited to 500 units – or 100 less than the existing coupe that's already sold out.

Bugatti Veyron, Lexus LFA, McLaren MP4-12C and Lambo Aventador in 1/4-mile shootout... who wins?

Automobile Magazine scribe Jason Cammisa was sent into the desert to referee four carbon-fiber-bodied wild animals fighting it out over the quarter mile: the V8 McLaren MP4-12C, the V10 Lexus LFA, the V12 Lamborghini Aventador and the W16 Bugatti Veyron Grand Sport. It's a tough job, innit?
The Head 2 Head race was run elimination style, with the winner of each two-up challenge facing the next devil up the totem pole. Although you might not have any doubts about the eventual victor, how each of these supercars fared is good watching. See all the screaming for yourself in the video below.

Weekly Recap: Autonomous driving goes commercial in Nevada

Nevada granted Daimler Trucks North America the first license to run an autonomous commercial vehicle on public roads in the United States Tuesday, marking another milestone in the technology's rapid advancement. Gov. Brian Sandoval and Daimler truck chief Wolfgang Bernhard promptly used the license to lap Highway 15 near Las Vegas in a newly revealed Freightliner Inspiration Truck. It was a clear signal that autonomous driving is big-rig reality, though it's still a long way from widespread use. Nevada certified two of Daimler's Freightliner Inspiration Trucks, which use the company's Highway Pilot system with a stereo camera, radar, and lane-keeping collision-prevention features to regulate the brakes and steering. The radar component has a long-range sensor that can cover 820 feet at an 18-degree angle and a shorter-range unit that stretches 230 feet at a 130-degree angle. The Inspiration trucks are based on the existing Freightliner Cascadia Evolution model used on US roads. In addition to the autonomous technologies, it also has futuristic design cues, including blue lighting in the front and a new hood and grille. While there are only two Freightliner Inspiration trucks in existence, Daimler expects to bring the Highway Pilot system into mass-produced big rigs by 2025, in time to capitalize on the market's predicted growth. The German truckmaker predicts the global hauling market will triple by 2050, and the United States will be a key part of that growth. Trucks carry 69.1 percent the nation's domestic freight tonnage and hauled 9.7 billion tons of freight in 2013, according to the American Trucking Association. Daimler expects autonomous driving to augment this growth, and perhaps evolve the role of the truck driver. Still, the company points out autonomous tech is not meant to replace drivers, but to assist them and relieve fatigue and monotony on long hauls. The driver has to stay in control for passing, in city traffic, and when hooking up the trailer. The company said autonomous driving also offers the potential for improved fuel economy – tests showed a five-percent gain – and lower maintenance costs. Daimler also said the technology could reduce congestion on the road. Much of this is attributable to the constant flow of traffic, which is aided by autonomous driving. While the benefits are becoming increasingly apparent, autonomous technology is still met with skepticism.