2007 Audi S4 4.2l V8 Quattro on 2040-cars

Auto blog

Audi RS3 spy shots foreshadow an ultra-hot hatch

Not all vehicle prototypes and mules require heavy camouflage - sometimes they can be hidden in plain sight. That's probably what Audi was hoping for while testing its new RS3 wearing S3 duds, but thanks to some visual and audible telltales, our spy photographers were able to recognize this as a precursor to the marque's ultra-hot hatch testing near the Nürburgring.
Our photographer noticed the signature exhaust note of a five-cylinder engine, which suggests the RS3 could borrow its motivation from the excellent TT RS. Producing at least 340 horsepower, this 2.5-liter turbo powerplant could be the perfect answer for the new A45 AMG from Mercedes-Benz. The big brakes on this RS3 mule give us our best idea about the car's high-performance intentions, with Audi RS wave brake rotors and six-piston calipers peering out from behind the oversized wheels.
In production form, the RS3 should have a much different appearance from what you see here, with sportier design cues including oval-shaped dual exhaust outlets and a more aggressive front fascia. While we're still waiting for our first taste of the S3 in the North America, we'll be holding our breath for the RS3 to make its way here, as well.

Researchers halfway to cutting carbon fiber costs by 90%

Carbon fiber has been utilized for decades to build racecars, as a means to cut weight while maintaining strength. But until recently, the space-age material has been largely absent from the street on anything but supercars because of the expense to use it. Recently, BMW signaled a major shift in that trend when it starting using carbon fiber reinforced plastic panels on the i3 and i8. This relatively small scale start might be just the beginning; the German company believes that a breakthrough to inexpensively manufacture the lightweight stuff is just on the horizon.
MAI Carbon Cluster Management GmbH counts BMW, Audi, Airbus, the German government and many other organizations as supporters, and it's researching how to make carbon fiber cheaper to produce, according to Automotive News Europe. The company thinks it can reduce costs by 90 percent in the near future. "We've certainly reached a halfway point on our cost-cutting target for suitable carbon-fiber parts," said project head Klaus Drechsler to Automotive News Europe.
Unfortunately, it isn't entirely clear just what MAI Carbon is doing to make such a huge leap possible. However, a recent post on the company's website talks about a new form a carbon fiber using a thermoplastic matrix that could be cured in less than three minutes. That's compared to about 90 minutes in the traditional process with an autoclave.

Audi R8 LMX illuminates the City of Light with lasers

Hard as it may seem to believe, the Audi R8 has been around for the better part of a decade. But does that make us love it any less? Hardly, especially not when Audi keeps rolling out ever-more enticing versions like the one you see here.
Debuting at the Paris Motor Show, the new Audi R8 LMX is the most powerful version of the supercar we've seen yet, thanks to a 5.2-liter V10 engine tuned to deliver 570 metric horsepower. That's 562 by our count, making it ten horses more potent than the R8 GT, or 37 more than the standard ten-cylinder R8 5.2 FSI - enough to propel the LMX to 62 in 3.4 seconds.
That's not all that sets the LMX apart, however, as Audi has fit it with cutting-edge laser-beam headlights. It comes exclusively as a coupe in Ara Blue with carbon fiber trim, special wheels, red brake calipers and a black leather cockpit. Only 99 examples will be made, and with those laser headlights banned in the US, your best chance of seeing one is in the gallery of live images above.