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Watch Stanford's self-driving Audi hit the track

Sending a self-driving race car around a track with nobody inside seems pointless – there's no driver to enjoy the ride, and the car certainly isn't getting a thrill out of it. But the students performing research with Stanford University's Audi TTS test rig "Shelley" (not to be confused with Audi's own self-driving race cars) are getting a kick out of the numbers generated by the machine. "A race car driver can use all of a car's functionality to drive fast," says Stanford Professor Chris Gerdes. "We want to access that same functionality to make driving safer." The teams push the car to speeds over 120mph and the computers have executed lap times nearly as fast as professional drivers. However, they also spend a lot of time maneuvering at 50 to 75 mph, the speeds where accidents are most likely to happen. That way, the students can figure out how to incorporate braking, throttle and maneuvering to develop new types of automatic collision avoidance algorithms. Better technology, for instance, could have saved Google from a recent slow-speed accident where its vehicle was struck by a bus. During race days, students break into teams to perform different types of research. "Once you get to the track, things can go differently than you expect. So it's an excellent lesson of advanced planning," says Gerdes. In the latest rounds of testing, for instance, one PhD student developed emergency lane-change algorithms, while another recorded a skilled human driver in an attempt to convert his behavior into a driving algorithm. The main goal, of course, is to prepare students for something they may not have expected -- an automotive industry that is adopting self-driving technology at breakneck speeds. This article by Steve Dent originally ran on Engadget, the definitive guide to this connected life. Green Audi Technology Coupe Autonomous Vehicles Racing Vehicles Performance Videos racecar research

Audi celebrates original RS with RS4 Avant Nogaro selection

It's been 20 years since Audi unveiled the RS2 Avant, the progenitor of an entire range of ridiculously fun luxury cars, including the RS3, three generations of the RS4, three generations of RS6, the RS5, and new RS7 and RS Q3. In honor of the anniversary, Audi is paying tribute to the Porsche-fettled wagon by releasing a special edition of its modern-day counterpart, the RS4 Avant.
Called the RS4 Nogaro selection, it sports vibrant Nogaro Blue paint, which is similar to the RS2's signature color. The twin oval exhaust, window frames, and grille surround are finished in gloss black, while the roof rails are matte black. 20-inch wheels in a V-spoke pattern are the RS4 Nogaro's final exterior tell.
In the cabin, Nogaro Blue Alcantara suede accents are optional on the door panels and seat inners (black suede is also available), while Valcona leather comes standard on the seat outers. The steering wheel, meanwhile, features Nogaro Blue contrast stitching and is wrapped in black leather. Blue threads in the carbon fiber trim and a special-edition shifter round out the interior work on this special edition RS4.

This is the 2017 Audi S4 Avant

As we saw a few months ago, the new S4 sedan (which will go on sale in the US later this year as a 2017 model) ditches the supercharger and adopts turbocharging for its newly-developed V6. It also loses an option for a manual gearbox, and will only be available with an eight-speed automatic. As is the way of such things, the new wagon version (Avant in Audi-speak) doesn't differ from its sedan twin in any substantive mechanical way. There are two major differences. The first is of course the form factor; the second is where it will be sold. This is not an American proposition, so don't hold berate your local Audi dealer. If you want one, move to Europe after it goes on sale later this year. This is a shame, but not a surprise. Audi is in the midst of slotting a CUV into every possible micro-niche it can find, including the upcoming Q2 that the company teased this week. Unfortunately, that means Americans will miss out on the sizable cargo area (17.8 - 53.3 cubic feet, compared to just 17 cu ft in the S4 sedan's trunk) and lower center of gravity when compared to a typical CUV. If you want a S4 Avant here in the States, the closest you can get is the A4-based Allroad, which packs the familiar 2.0-liter TFSI engine and eight-speed auto. Too bad; the S4 Avant is a great-looking wagon. Related Video: Insert your press release here!From 0 to 100 km/h (62.1 mph) in 4.7 seconds with fuel consumption of less than 7.4 liters of fuel per 100 km (31.8 US mpg) – the new Audi S4* and the new Audi S4 Avant* are advancing to the peak of the competitive field with strong performance and exemplary efficiency. Its newly developed turbo V6 engine outputs 260 kW (354 hp). New solutions in networking and assistance systems round out its features. Audi is transferring many technologies from the full-size class into the mid-size class. Lightweight and strong: the 3.0 TFSI The strong heart of the two new S models from Audi is a newly conceptualized 3.0 TFSI engine. The direct gasoline injection engine with turbocharging has an output of 260 kW (354 hp) and produces a hefty torque of 500 Nm (368.8 lb-ft) from 1,370 to 4,500 rpm. In terms of power and torque, it surpasses the previous model while achieving considerably lower figures in weight and fuel consumption. The turbo V6 engine accelerates the Audi S4 from 0 to 100 km/h (62.1 mph) in 4.7 seconds, and on up to an electronically governed top speed of 250 km/h (155.3 mph).