2000 Audi A6 2.7t Quattro on 2040-cars

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The Audi RS5 takes aim at the BMW M4 and Mercedes-AMG C63

The current generation of the Audi A5 has soldiered on for the past 10 years, an eon when it comes to automobiles. Though we've seen and driven its replacement, the new car hasn't quite made it to market. As with most of Audi's lineup, the car is expected to come in three versions. While the full reveal and first drive reviews of the A5 and S5 took place late year, until now we haven't had a peek at the range topper Audi RS5. It sits on Audi's B9 platform shared with the Audi A4 sedan. Essentially, it's Audi's equivalent to the BMW 4 Series or the Mercedes-Benz C-Class coupe. In the case of the RS5, compare it to the BMW M4 and the Mercedes-AMG C63. Like its rivals, the RS5 sits longer, lower, and wider than its sedan stablemate. The RS features aggressive front and rear fascias and a set of unique wheels. While the styling of the new model may look evolutionary, it is indeed all-new inside and out. The two cars in these photos are wrapped in camouflage that covers everything below the beltline. The general shape of the bodywork looks the same, but the front and rear are slightly restyled. The front now has larger air intakes in the corners and a lower chin spoiler. Out back, the dual single-exit exhaust pipes give the RS model away. The S5, like all S models, features quad exhaust tips. The rear bumper is slightly modified, but all in all it's not far off from the A5 and S5 models. Audi's styling is always conservative, so this should come as no surprise. There's no word as to what's resting under the hood, but look for forced induction and six cylinders, possibly pulling something from the Porsche Panamera. As with every other Audi performance car, power will be sent to all four wheels through the latest generation of the Quattro all-wheel drive system. Look for a full reveal in the next few months, possibly as soon as March at the Geneva Motor Show. Related Video:

Audi debuts all-new R18 E-Tron Quattro with novel secondary hybrid system

This is the new Audi R18. It looks like the Bond villain of race cars (it has red running lamps), and if Audi's past is any indication, it'll prove difficult to beat in the LMP1 class of the 2014 World Endurance Championship.
The car's full name is the Audi R18 E-Tron Quattro, just like last year's car. Also like last year's car, the new R18 draws its power from a V6 turbodiesel, which powers its rear wheels, and Audi's E-Tron hybrid system, which runs its front axle. Unlike last year's car, though, this R18 has a secondary hybrid system. Audi has fitted the V6 with an electric turbocharger and figured out how to capture waste heat generated when the engine reaches its boost limit. That power can then be stored and fed back into either the turbo or the front axle's hybrid system under acceleration.
There are a number of changes to the body on the new car, forced in large part by series regulation changes. The car is narrower, particularly at the front, but it's also taller. The front end is set off by a new wing, as part of a new WEC regulation. Audi seems quite pleased about this, citing an improvement in front-end downforce and a reduction in cost. Like Formula One, the WEC contenders now have to contend with a ban on the so-called blown diffuser, which forced exhaust gases over the diffuser, creating downforce. That's necessitated some changes from Audi, although as we have no rear shots of the car, we can't tell you what it looks like.

To solve diesel problem, VW might need two fixes

Volkswagen says that a fix is on the way for its 11 million vehicles around the globe that are equipped with diesel engine software that can evade emissions tests. The problem might be far more complicated than simply creating a single solution for all of them, though. According to Automotive News citing Reuters, two remedies to cover different NOx-reducing systems could be necessary, and both potentially affect performance. Earlier examples of the EA 189 diesel engine used a lean NOx trap to reduce the harmful material coming from the tailpipe. According to experts in the Automotive News report, a software update might allow the engines to achieve compliance, but that could affect fuel economy. VW already tried this route once before the scandal came to light, but tests by the California Air Resources Board still showed the figures were too high. Later, some of the 2.0 TDI engines began using Selective Catalytic Reduction that reduced NOx by injecting a urea solution into the exhaust stream. According to Automotive News, a software update for this equipment might increase the amount of the substance used. Not only would that mean topping up the fluid more often, but there still could be some reduction in fuel economy. But, since the 2-liter, 4-cylinder TDI engine that sits inside the diesel vehicles first mentioned as being affected by the issue in the US don't have a urea treatment system, VW would need to install them into these cars. VW still hasn't officially outlined its solution (or solutions) to the emissions issue but is expected to soon. The automaker's long-term evasion of regulations with these diesel engines pumped vast quantities of additional NOx into the air. The substance is known to be linked with smog and acid rain. The US Department of Justice is already beginning an investigation into the company, and politicians are pushing for harsh punishments.