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Stanford goes from Pikes Peak to Thunderhill with autonomous Audi TTS

In the years since Stanford University engineers successfully programmed an Audi TTS to autonomously ascend Pikes Peak, the technology behind driverless cars has progressed leaps and bounds. Back then the Audi needed 27 minutes to make it up the 12.42-mile course – about 10 minutes slower than a human driver. These days, further improvements allow the vehicle to lap a track faster than a human. The researchers recently took their autonomous TTS named Shelley to the undulating Thunderhill Raceway Park, and let it go on track without anyone inside. The Audi reportedly hit over 120 miles per hour, and according to The Telegraph, the circuit's CEO, who's also an amateur racing driver, took some laps as well and was 0.4 seconds slower than the computer. To make these massive technological advancements, the Stanford engineers have been studying how racers handle a car. They also hooked up drivers' brains to electrodes and found the mind wasn't doing as much cognitively as expected. It instead operated largely on muscle memory. "So by looking at race car drivers we are actually looking at the same mathematical problem that we use for safety on the highways. We've got the point of being fairly comparable to an expert driver in terms of our ability to drive around the track," Professor Chris Gerdes, director of Stanford's Revs Program, said to The Telegraph. With progress coming so rapidly, it seems possible for autonomous racecars to best even elite drivers at some point in the near future. Related Video:

Audi readies sales of new fuel-efficient A4, A5 and A6 models

As diesels continue to account for a minority of cars sold by Audi in the US, the German automaker and Volkswagen unit continues to expand its diesel models in Europe for the sake of fuel efficiency. Early this year, Audi will debut its new A4, A5 and A6 variants in Europe as part of what it calls its "ultra" strategy of pairing performance with fuel economy. Audi will have 11 new models for 2014, and the updated A4, A5 and A6 will use Audi's 2.0-liter turbodiesel powertrain. Versions of that engine will range from 136 to 190 horsepower, while torque will range from 236 to 295 pound-feet. More importantly, the models will get anywhere from 51 to 60 miles per gallon, when tested on the more lenient European driving cycle. And while manual transmission will be standard (this is Europe, after all), the A6 will have a seven-speed automatic transmission option. Pricing will start at 32,600 euros ($44,000 US) for the base A4 and work its way up to 45,000 euros (about $61,000) for the top of the line A6. Last year, Audi boosted its diesel sales in the US by 40 percent to just over 10,000 units, though that accounted for just a fraction of the approximately 158,000 cars the company sold domestically in 2013. Audi has a press release on the new models below. The new ultra models from Audi A4, A5 and A6 with impressive efficiency • New ultra models from Audi with 136 hp, 163 hp and 190 hp • Greater efficiency with unchanged driving dynamics • Emissions of just 104 to 119 grams of CO2 per kilometer (167.37 to 191.51 g/mile) Audi A6 2.0 TDI ultra, Audi A5 2.0 TDI ultra, Audi A3 1.6 TDI ultra Audi is expanding its ultra strategy with 11 new models: Especially efficient engine versions in the A4, A5 and A6 model lines will be launched in early 2014. A new and powerful two-liter TDI will provide the drive at 100 kW (136 hp), 120 kW (163 hp) or 140 kW (190 hp); the engine emits just 104 to 119 grams of CO2 per kilometer (167.37 to 191.51 g/mile) depending on the model. The "ultra" designation stands for sustainable mobility that is fully available for everyday use. With a combined fuel consumption rate of 3.9 to 4.6 liters per 100 kilometers (60.31 to 51.13 US mpg) and CO2 emissions of 104 to 119 grams per kilometer (167.37 to 191.51 g/mile), the new ultra models from Audi are among the most efficient cars of their segment – without any limitation on the driving dynamics or customary comfort. Audi Board Member for Development, Prof. Dr.

Bentley doubles down on diesels with a triple-charged Bentayga

Volkswagen Group isn't totally giving up on diesels. While its flagship VW brand is clearly tarnished, the ultra-luxury Bentley division just revealed plans for its first oil-burner, a triple-charged 4.0-liter V8 that produces 429 horsepower and 664 pound-feet of torque. If the powertrain sounds familiar, that's because it's the same one found in the Audi SQ7 TDI. It's a clever system capable of giving what Bentley claims as the world's fastest diesel SUV a top speed of 168 miles per hour and a zero-to-62 mph time of 4.8 seconds. The SQ7 TDI can get to 62 mph in the same time, but is electronically limited to 155 mph, because it wouldn't make sense if the cheaper SUV could outperform the much more expensive one. The Bentayga also emits the lowest CO2 output of any Bentley and has a range of over 621 miles on one tank. Despite having a curb weight of 5,269 pounds, Bentley claims the Bentayga can get a combined rating of 35.8 mpg on the European cycle. The Bentayga Diesel may not be as powerful or as fast as the W12-powered model, but it's a lot more fuel efficient as the latter achieves a combined rating of 21.6 mpg on the European cycle. Other than the new engine, the Bentayga diesel is nearly identical to its gasoline-powered twin except for some discreet "V8 Diesel" badges on the front doors, a new exhaust outlet design, and a black grille. A Bentley spokesperson confirmed that the Bentayga diesel would not be sold in the US. And since Bentley won't be at this year's Paris Motor Show, don't get your hopes up on spotting the vehicle there. The diesel-powered SUV will go on sale in Europe early next year, which will be followed by its release in Russia, South Africa, Australia, New Zealand, and Taiwan. Pricing for the SUV has not been announced yet. Related Video: Featured Gallery 2018 Bentley Bentayga Diesel View 20 Photos News Source: BentleyImage Credit: Bentley Green Audi Bentley SUV Diesel Vehicles Luxury Performance bentley bentayga