2010 Audi R8 Base Coupe 2-door 4.2l on 2040-cars

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The Audi Q7 doesn't want me to speed and I'm not totally okay with that

I'm a big fan of adaptive cruise control. My commute is 50 miles each way, almost all on freeways here in Michigan. If everyone drove at the same speed there'd be little need for smart cruise, but I live in reality where people camp out in the left lane and practice going from the gas to the brake for no apparent reason. Radar cruise systems let me set my max speed and just worry about steering. But Audi has gone a step further with its adaptive cruise system. And it's a step I'm not sure I'm comfortable with. Audi's system, as featured on the new Q7, has a feature that uses the forward-facing camera to read speed-limit signs, something that's becoming common in Europe and is now making its way here in the continent's luxury cars. That part's fine; it's useful information and gets nicely integrated into Audi's Virtual Cockpit screen and on the head-up display. What the car then does with that info, however, is the issue: If your set cruise speed is higher than the speed on a sign you pass, the car will drop the cruise speed down to the limit. But it's not perfect. On one stretch of highway, the Q7 picked up the speed limit posted on the parallel service road, dropping me down from a little above the limit to 30 mph. It didn't slam on the brakes, but it did confuse me at first and require intervention before the car slowed down to a crawl. This feature isn't ready for primetime. Luckily, it can be turned off or switched to a mode where it gives you a warning that the speed limit has changed (or at least that the car thinks it has) and lets you react before the set cruise speed is changed automatically. When activated, it's a safety issue. A more serious one, in my opinion, than driving a little over the speed limit, especially when it means interrupting the flow of traffic. There's nothing predictable about a car trundling along in the fast lane and then completely letting off the gas. It's not predictable for the driver behind you, and it's not something a driver expects of their own vehicle. Yes, this feature was obviously developed for people driving on the Autobahn, where speeds can drop down from unlimited to a slow crawl pretty quickly when entering a construction zone or approaching a built-up area. German roads also have more consistent signage, so the false-positive scenario I experienced might not have come up there.

CO2-neutral* Audi A3 G-Tron goes on sale in Germany

The Audi A3 Sportback G-Tron has been on our natural gas-powered radar since it was unveiled at last year's Geneva Motor Show. Just before the big show starts up again this year, Audi put the new G-Tron vehicle on sale in Germany today, starting at 25,900 euros ($35,400 US). Anyone who opts for the Audi e-gas fuel card will be able to cruise the Autobahn knowing that their emissions will be CO2-neutral. That's because Audi has built an e-gas plant in Werlte in Lower Saxony, Germany that creates a synthetic methane that is compatible with natural gas from a process that uses "green electricity" to "[bind] as much CO2 as is released when the Audi A3 g-tron is driven in gas mode." Your own A3 G-Tron doesn't burn the carbon-neutral fuel directly, but the automaker will track how much is spent using the fuel card and make sure "that exactly this amount of Audi e-gas is fed into the German natural gas network." Audi charges 14.95 euros a month to use the card. Burning that e-gas in the A3's 1.4-liter TFSI engine can put out 110 horsepower (you can also burn regular natural gas or gasoline) and offers fuel economy of between 3.2 and 3.3 kilograms of gas per 100 kilometers on natural gas Audi A3 g-tron: Advance sales get the green light Ingolstadt, 2014-02-13 Audi A3 Sportback g-tron available to order from February 13 CO2-neutral mobility with the Audi e-gas fuel card Prof. Dr. Ulrich Hackenberg: "Audi e-gas is an important pillar of our sustainability strategy" The Audi A3 g-tron is all set to hit the roads. Advance sales at dealerships in Germany will kick off on February 13. The basic price will be 25,900 euros. Using the Audi e-gas fuel card, customers can opt for Audi e-gas to power their A3 g-tron without impacting the environment if they wish. The Audi A3 g-tron forms part of a new, integrated and sustainable mobility concept from the brand with the four rings. Its 1.4-liter TFSI engine developing 81 kW (110 hp) can be operated using either natural gas, e-gas generated by Audi or gasoline. In pure e-gas mode the g-tron is entirely CO2-neutral. Audi e-gas is a synthetic methane that is produced at the Audi e-gas facility located in Werlte in Lower Saxony, Germany – the world's first industrial power-to-gas plant. An A3 Sportback g-tron fueled by Audi e-gas is currently the most environmentally friendly form of long-distance mobility.

Audi celebrates 25 years of TDI

Nope, the diesel engine never really did go out of style for Audi. Now, the German automaker has released a video reminding the world of its persistence with the oil-burners and is commemorating the Silver Anniversary of Audi's first commitment to turbodiesels in 1989. And, yes, there are some road racers shown in the clip, so some of those bad boys actually move pretty well. Audi engineers on camera admitted to some of the early TDI engines being "slow" but still valuable for their torque and, obviously, their fuel economy relative to gas-powered engines. A bunch of tinkering later, though, and Audi says its diesels can be a legitimate "part of a performance car" and has even overcome the issue of noisiness that's often associated with diesels. The automaker made some news in these parts a few years back when its Audi A3 TDI won the 2010 Green Car of the Year at the annual LA Auto Show in late 2009, and the model even succeeded a fellow diesel (the Volkswagen Jetta TDI) to boot. Granted, diesel sales aren't nearly as popular in the US as they are in Europe. Still, Audi last year boosted its diesel sales in the US by 40 percent to 10,076, which was about a tenth of what sister company Volkswagen sold in diesels last year in the States. And things have looked even rosier this year for Audi's TDI sales. Through June, Audi diesel sales have almost quadrupled from a year earlier to more than 8,100 units. Check out the 150-second video on Audi's 25-years of TDI production below.