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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.

Autoblog Podcast #402

Episode #402 of the Autoblog Podcast is here, and this week, Dan Roth, Steven Ewing, and Brandon Turkus talk about the Audi A3 TDI Challenge and luxury car features we not-so-secretly love. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening! Autoblog Podcast #402: The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics: Audi A3 TDI road trip Luxury features we're sort of ashamed we love In The Autoblog Garage: 2014 Land Rover LR4 2015 Aston Martin Vanquish 2015 Dodge Challenger R/T Scat Pack Hosts: Dan Roth, Steven Ewing, Brandon Turkus Runtime: 01:17:40 Rundown: Intro & Garage - 00:00 Audi A3 TDI Challenge - 42:51 Luxury Features We Love - 01:00:05 Q&A - 01:09:17 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Podcasts Aston Martin Audi Dodge Land Rover Diesel Vehicles Luxury Performance aston martin vanquish

Watch the Audi R18 E-Tron Quattro long-tail testing at Monza

Audi released a single photo of the long-tailed version of its R18 E-Tron Quattro Le Mans racer, but the photo didn't offer the best view of the stretched rear. The car has been caught testing at Monza, in Italy, and not only do we get a better view of what it's got out back, we get pretty awesome sound as it makes high-speed runs past the camera.
Since the 2013-spec car was found to be down on performance versus the 2012, the long-tail is a different evolution to see if Audi can eke out more performance from its already dominant chassis. Have a look and a listen in the video below.